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  • 1.
    Abedan Kondori, Farid
    et al.
    Umeå University.
    Yousefi, Shahrouz
    Umeå University.
    Li, Haibo
    Umeå University.
    Gesture Tracking for 3D Interaction in Augmented Environments2011In: Proceeding of The Swedish Symposium on Image Analysis (SSBA2011), Linköping, Sweden, 2011Conference paper (Other academic)
  • 2.
    Abu Daqqa, Nizar
    et al.
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Alan, Serkan
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    On the Requirements to Implement E-maintenance Cost effectively: Survey Study2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Nowadays, companies started to realize the impact of a good maintenance strategy on the production process. Quality, performance as well as availability are affected by maintenance; existing maintenance strategies help to optimize the production process to achieve high quality products with a low production cost. A new strategy of maintenance has immerged recently, e-maintenance provides an easy solution to follow up with maintenance, it provides condition monitoring, documentation, and it also gives you the best maintenance solution that fits your goals and vision. Articles related to e-maintenance was studied and analyzed to know the steps to implement a cost-effective e-maintenance. The authors came up with a model that describes the implementation process in three main steps.

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    fulltext
  • 3.
    Adappan Ramu, Sasikala
    et al.
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Narasingam Kuppusamy, Venkatesh
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Exploring knowledge sharing in the Requirement Engineering phase of globally distributed Information Systems development: Perceived challenges and suggestions for improvement2016Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The Master thesis explores the knowledge sharing that takes place during the requirement engineering phase of globally distributed information systems development. In recent years, due to globalization, information systems development activities have become increasingly distributed across different geographical locations. Requirement engineering is an important and knowledge intensive phase in the development of information systems. Requirement engineering is the process of identifying, analyzing, documenting, validating and managing the requirements of a system. Effective and efficient knowledge sharing during the requirement engineering is vital for the successful development of information systems. However, the global distribution of the stakeholders has affected knowledge sharing during requirement engineering in various ways making it more challenging.

     

    Drawing on the theories of knowledge sharing within the field of information systems, this interpretive research study aims at exploring stakeholders’ perceptions about the challenges met during the knowledge sharing in requirement engineering phase of globally distributed information systems development projects. More specifically, this Master thesis explores the perceived challenges and generates a list of suggestions to overcome the challenges by conducting qualitative semi-structured interviews among the key stakeholders, both customers and business analysts.

     

    The findings indicate that the knowledge sharing is influenced by challenges such as cultural differences, language barriers, communication issues, coordination issues arising from multiple stakeholders, time difference and difficulty in sharing tacit knowledge in the globally distributed settings. Participants’ suggestions for overcoming these challenges include cultural trainings, kick off meetings, language trainings, use of translator, face-to-face communication and interaction, video conferencing, scheduling important meetings in the common suitable timings, identification of the main stakeholders, having a mediator and making close observations with face-to-face interactions.

     

     

    Keywords:  Information Systems, Information Systems Development, Requirement Engineering, Knowledge Sharing, Global Distribution, Outsourcing

     

     

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    Master thesis in Informatics
  • 4.
    Adriansson, Mikael
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Johansson Breeze, Peter
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Kommunicera säkert: En studie om kommunikation mellan lotsar, befälhavare och bogserbåtsbefälhavare2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The aim of this study was to examine how pilots, vessel masters and tugboat masters perceive the importance of verbal communication with consideration to safety and efficiency.  This is based on the fact that the vast majority of accidents involving vessels occur because of human error, where lack of communication plays a large part. In the study semi-structured interviews were held with two pilots, two masters and two tugboat masters. After conducting these six interviews it became apparent at the use of standard phrasing and closed loop communication could vary. Based on the information collected one conclusion is that if the usage within these two areas improved safety could increase. It was also apparent in this study that the knowledge of the English language differed greatly which also could lead to misunderstandings with the giving of instructions. A better proficiency in English and better knowledge of verbal communication could be two possible ways of increasing safety.

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    Kommunicera säkert
  • 5.
    Ahlstedt, Sebastian
    et al.
    Linnaeus University, Faculty of Technology, Department of Computer Science.
    Granath Karlsson, David
    Linnaeus University, Faculty of Technology, Department of Computer Science.
    Diskkrypteringsprestanda i GNU/Linux2013Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [en]

    This thesis compares the impact on disk performance in a GNU/Linux  environmentwith three encryption algorithms: AES,  Serpent and Twofish in three different implementations: DM-crypt, Loop-AES and Truecrypt. For all three algorithms a key length of 256 bits is used.

    The thesis shows that the least performance impact during data encryption, and thus file writing, is reached by using AES or Twofish encryption implemented in DM-crypt or TrueCrypt. The thesis shows that some data operations with a sufficiently low processor utilization barely affects disk performance at all if encrypted using the optimal implementation and algorithm.

    It is also discovered that the performance impact during data decryption, or file reading, can be minimized by using the most efficient implementation and algorithm. The best results are met with the AES or Twofish cipher, regardless of implementation.

    An important conclusion that  is  drawn is that it is hard to determine a superior encryption solution for all purposes. However, by reviewing and examining the collected data from all aspects of disk performance the AES implementation in TrueCrypt is, with small marginals, determined to be the most optimal.

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    Diskkrypteringsprestanda i GNU/Linux
  • 6.
    Ahmedi, Figene
    et al.
    University of Prishtina, Serbia.
    Ahmedi, Lule
    University of Prishtina, Serbia.
    O'Flynn, Brendan
    Tyndall National Institute, Ireland;University College Cork, Ireland.
    Kurti, Arianit
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM).
    Tahirsylaj, Sylë
    Hydrometeorological Institute of Kosova, Serbia.
    Bytyçi, Eliot
    University of Prishtina, Serbia.
    Sejdiu, Besmir
    University of Prishtina, Serbia.
    Salihu, Astrit
    University of Prishtina, Serbia.
    InWaterSense: An Intelligent Wireless Sensor Network for Monitoring Surface Water Quality to a River in Kosovo2018In: International Journal of Agricultural and Environmental Information Systems, ISSN 1947-3192, Vol. 9, no 1, p. 39-61Article in journal (Refereed)
    Abstract [en]

    A shift in water monitoring approach from traditional grab sampling to novel wireless sensors is gaining in popularity not only among researchers but also in the market. These latest technologies readily enable numerous advantageous monitoring arrangements like remote, continuous, real-time, and spatially-dense and broad in coverage measurements, and identification of long-term trends of parameters of interest. Thus, a WSN system is implemented in a river in Kosovo as part of the InWaterSense project to monitor its water quality parameters. It is one of the first state of the art technology demonstration systems of its kind in the domain of water monitoring in developing countries like Kosovo. Water quality datasets are transmitted at pre-programmed intervals from sensing stations deployed in the river to the server at university via the GPRS network. Data is then made available through a portal to different target groups (policy-makers, water experts, and citizens). Moreover, the InWaterSense system behaves intelligently like staying in line with water quality regulatory standards.

  • 7.
    Al Kamsie, Samer
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Klevsäter, Lars-Peter
    Titanic: Ur ett modernt försäkringsperspektiv2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Maritime insurance is a collective name for a multiple insurances a shipping company must have in order to conduct maritime operations. The two most common ones that affect the ship itself and its operation are Kasko and P&I. Using the RMS TITANIC case, the study intends to determine whether the policyholder of the vessel is entitled to insurance compensation or not according to modern Swedish maritime insurance. The study looks more closely at how insurance companies apply the terms for identification and what differentiates negligence from gross negligence, in order to determine whether compensation should be paid to the owner of RMS TITANIC. The study uses a qualitative method with semi-structured interviews and literature study. The result shows that Swedish insurance companies apply identification to a small extent, which allows insurance coverage for shipowners not to be affected if a crew acts carelessly on board, but the same does not apply if the act was grossly negligent. This means that the policyholder of RMS TITANIC is entitled to compensation according to modern maritime insurance.

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  • 8.
    Aldén, Gustaf
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    A pilot framework for BRM training2020Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Human error has been a key factor in grounding- and collision incidents in the past and continues to present a challenge to the maritime industry in the present day. The feasibility of a pilot framework for Bridge Resource Management (BRM) training lies at the heart of this study, its objective being to gauge the possibility of the construction of such a model. The result is thought to open up for further research and highlight the most relevant and effective BRM tools that can be used, by the bridge team, to prevent collision and grounding. The study was carried out in two stages. Firstly, four key personnel within the shipping industry were interviewed. These respondents were tasked with prioritising what they regarded as the most effective BRM tools. Secondly, the effectiveness of these tools was tested on marine incident cases. A document analysis was carried out on six collision and grounding cases, as investigated by the Marine Accident Investigation Branch (MAIB). The majority of the respondents were in agreement regarding which three BRM tools they regarded as the most relevant and effective. The result from the interviews was repeated in the result from the document analysis.  The conclusions that were drawn are that: it is possible to construct a pilot framework for BRM training and it is also possible to measure the effectiveness of the BRM tools. Additionally, suggestions for further research that arose from this thesis pertain to the study of the relationship between different BRM tools.

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    fulltext
  • 9.
    Al-Humadi, Rasha (current name Lisa Edisen)
    Linnaeus University, Faculty of Science and Engineering, School of Computer Science, Physics and Mathematics.
    3D Virtual Shopping Mall: Towards Transformation of levels from 2D to 3D2012Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    This research examines the effects of using 3D virtual shopping malls and shows the user interaction and experience in this type of virtual environments. Technology developments and the use of the Internet made users to expect more services, which help to improve the user's life. Using a 3D virtual environment and adding a shopping idea to it is considered as very interesting, especially if it reflects the real world in a virtual reality that make its users attached to it. Furthermore, the possibility of having an avatar to represent themselves in computer-mediated virtual environment help users to explore the virtual environment. Another advantage is that users have the possibility to invite friends and to navigate inside a 3D Virtual-shopping mall not alone but together, which gives the user the capability to socialise inside the mall. Besides, changing of the customer's profile and chatting with friends is supported, too. Moreover, the transformation process from a two-dimensional environment to a three-dimensional environment is considered to be convenient for both, customers and mall owners.

     

    I have used phenomenology to investigate this new phenomenon. In addition the data was gathered by interviewing several participants from different educational levels as well as business owners of 3D virtual malls. The research will show the potential of using a 3D virtual shopping mall from the user's perspective as well as from the business' owners and having a 3D virtual shopping mall is not only considered entertaining, but also convenient.

     

    As a future work I recommend to interview the merchants in this research to grasp this idea completely.

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    Master thesis Rasha Al-Humadi
  • 10.
    Alkaptan, Saman
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Tillgänglighet på supportsidor: En fallstudie kring vad som påverkar upplevd tillgänglighet och användarvänlighet på en supportsida2019Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    The purpose of the web is that it should be accessible to everybody, however, there are people with some type of disabilities that makes them unable to access or use certain websites because of the lack of accessibility that is implemented in them. This means that these websites are not user-friendly for users with disabilities. In order to highlight the problem, areas such as user-experience, usefulness, accessibility and WCAG 2.0 were explored in order to gain a better understanding of these areas and get a better picture of the important factors in them. Based on the theories, the study showed that these previously mentioned areas are part of  each other and that accessibility is good for both users with and without disabilities.

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    Tillgänglighet på supportsidor
  • 11.
    Allhorn, Simon
    et al.
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Svensson, Victor
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Kapacitetsökning på ett producerande företag: Fallstudie på Villa VIDA AB2014Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [sv]

    För att få en djupare förståelse för hur yta kan frigöras och användas har en studie genomförts på Villa VIDA som idag inte har tillräckligt med fri yta för kapacitetsökning. När nuläget analyserades kunde det konstateras att lagerbildningar på produktionsyta och ett måleri var det som hindrade företaget från att expandera. Baserat på det nuvarande läget genererades två alternativa layouter. I det ena förslaget valdes outsourcing av måleriet för att frigöra ännu mer yta och få plats med en kapacitetsökning på 50 % istället för 25 % som hade blivit resultatet om måleriet bevarats. Åtgärder som frigjorde yta innebar reducering av antal lagringspunkter och minskade orderkvantiteter. Vid utvärdering blev resultatet att företaget bör satsa på förslaget där måleriet är outsourcat då detta bidrar med ekonomiska så väl som flödesrelaterade fördelar samtidigt som ytan används på ett effektivare sätt.

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    Kapacitetsökning på ett producerande företag
  • 12.
    Almström, Magdalena
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Svanberg, Henrik
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Sjörättsmål: En jämförelse mellan målen i Sveriges sjörättsdomstolar2014Independent thesis Basic level (degree of Bachelor), 10 HE creditsStudent thesis
    Abstract [en]

    In Sweden seven courts has been appointed to specialize in admiralty law cases. These cases are either civil or criminal cases with connection to shipping on Swedish territory.

    The objective was to examine and describe the admiralty law verdicts over time with focus on what types of cases, differences between courts and variation over time. The study focused on merchant shipping.

    Study of literature was chosen as method and with follow-up questions interviews were made with agencies and experts. The literature in this study was the 153 verdicts that were announced between 2009 and 2013.

    Of all verdicts collected were five civil cases and 148 criminal cases with 13 classifications. The largest difference between the courts was the sum of verdicts. A change over time could not be observed.

    Other conclusions that were made were that ships’ masters, that have the utmost responsibility, avoided prosecution when they were not present for the event of the prosecution. 

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    Fulltext
  • 13.
    Al-Najjar, Basim
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Condition based maintenance for mechanical systemsManuscript (preprint) (Other academic)
    Abstract [en]

    In this paper a sequential method for the selection of maintenance technique for mechanical systems is presented. It is based on technical knowledge concerning component failure mechanisms and failure causes. Classification of failures according to their consequences is stated. A modified version of failure modes, effects and criticality analysis is given and a way to identify significant components is discussed. Analysis of collected data is discussed and a method to identify a replacement level of a monitoring parameter is proposed. Criteria for the selection of a monitoring technique based on the intrinsic information of monitoring parameters are introduced. Finally, a decision rule for the selection of a suitable maintenance technique is suggested and a modified expression of the long run average cost per unit time is used as a distinguishing criterion between applicable strategies.

  • 14.
    Al-Najjar, Basim
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Just-in time and dynamic maintenance (JIT-Maint) for turbine, generator, gearbox and sawmills: case stories2015In: 28º COMADEM + X CORENDE 2015 / [ed] Marta Clelia Ruch, Asociación Argentina de Ensayos no Destructivos y Estructurales, AAENDE , 2015Conference paper (Refereed)
    Abstract [en]

    Profitable production demands continuously improved maintenance decision accuracy to reduce unplanned stoppages, prolong components/machines  life length and maintain production continuity. When CM, e.g. vibration level or oil temperature, value exceeds a warning level, it demands a clear understanding of what happened and how it will develop to avoid failures. It demands also reliable information, e.g. probability of failure, residual  life and when is the most profitable time for maintenance. Companies strive to reduce production cost through reducing non-value adding times, e.g. failures, for offering customers lower prices and generating additional competitive advantages. In this paper, a new tool (Prediction of Vibration and oil temperature, PreVib) for predicting the condition of a turbine, generator and gearbox is introduced,  discussed and tested. The solution offers a unique opportunity to achieve just in time dynamic and cost-effective maintenance by selecting the most profitable time for maintenance. PreVib is tested in a power plant. The major results: Failures can appreciably be reduced thanks the high precision of prediction ( + 90%), i.e. a negligible difference from the real measurement: PreVib does not demand extensive or additional data, and not replace available maintenance systems. The major conclusion is that applying PreVib, it is possible to reduce failures appreciably, prolong life length of components/equipment and perform profitable maintenance

  • 15.
    Al-Najjar, Basim
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    On a graphical method for the selection of a maintenance techniqueManuscript (preprint) (Other academic)
    Abstract [en]

    In this paper a graphical method for the selection of a cost-effective monitoring technique is suggested. Also, a graphical method to estimate the level at which components should be replaced when using a cost-effective technique, i.e. threshold level, is proposed. These two methods are based on the concept of the Total Time on Test, TTT-plot on age and condition dependent replacement is discussed.

  • 16.
    Al-Najjar, Basim
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    On the modelling of condition dependent failure rates in mechanical systemsManuscript (preprint) (Other academic)
    Abstract [en]

    The cycle between two replacements based on condition monitoring is discussed. Models representing a condition dependent failure rate function reflecting the information in a monitoring parameter are suggested. For the selection of a cost-effective technique, a modified version of the Proportional Hazards Model, PHM, is proposed. Utilizing this modified model, it is possible to reveal the effect of monitoring parameters and operating conditions on the failure rate function. General comments on the application of the cost equation are given.

  • 17.
    Al-Najjar, Basim
    et al.
    Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design.
    Williamsson, Ia
    Växjö University, Faculty of Mathematics/Science/Technology, School of Technology and Design.
    On the Possibility of Applying Condition-based Maintenance Approach on Software Instead of the Traditional Approach2009In: Comadem conference 2009. The 22nd international congress, condition monitoring and diagnostic engineering management / [ed] Aitor Arnaiz, Ana Arazabe, B K N Rao, 2009, p. 649-656Conference paper (Refereed)
    Abstract [en]

     

    Each minute of software system crashes and downtime in critical systems is often expensive or dangerous for both humans and the environment. Research reveals an intimidating large effort for maintenance; up to 90% of software cost is derived to maintenance and evolution. The attention on software maintenance has increased due to the safety aspect and its significant economic importance on information technology. Applying a statistical model for planning regular software maintenance action and modification can be misleading because similar software behave and age differently at various operating conditions. Standards that are used for software development and software maintenance do not treat software condition-based or proactive maintenance explicitly. Detecting deviations in the condition and performance of software systems at an early stage should decrease the economic losses.

    In this paper, different aspects of critical IT systems have been considered. The major result of this study is; a literature review, classification and analysis of maintenance approaches applied in industry and those in software reinforce that industrial approaches are conceptually comparable with software approaches. Also, investigating the possibility of adapting experiences from industry in the development of a new condition-based maintenance approach regarding software systems is viable. The main conclusions are that static and dynamic properties of software condition can be obtained by using tools and techniques, and if identifying and monitoring software degradation parameters it would be possible to apply a CBM policy on software. Consequently more research effort needs to be accomplished on condition-based software maintenance with a proactive-predictive approach.

  • 18.
    Alsterlind, Stina
    Linnaeus University, Faculty of Engineering and Technology, Kalmar Maritime Academy.
    Att leva med en sjöfarare: En kvalitativ studie ur partnerns perspektiv2013Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A profession at sea involves alternating away/home periods, which means a special situation for the seafarer in reconciling profession and family life. This rotation system can also be assumed to have consequences fot those who live with a seafarer. Against this backgrund, the purpose of this study was to illustrate how the rotation system may effect the partners´daily lives ande thier ralationship with the saefarer. A qualitaive approach was used because I wanted to understand and describe the respondents´personal experiences. The results showed that the perception among the respondents varied. The problematic aspects that emerged were above all the absence of acxact dates for the serfarer to sign on and off the vessel. Thay found it difficult to be proactive and make common plans when the dates often changed. The positive aspects that were highlighted included; quality time together, own time and natural breakes in the realtionship which could lead to positive emotions of renewal. The key to getting the relationship to work was seen as a positive attitude and a common compromise from both parties.

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    Att leva med en sjöfarare - En kvalitativ studie ur partnerns perspektiv
  • 19.
    Alvarez, Claudio
    et al.
    University of Los Andes, Chile .
    Milrad, Marcelo
    Linnaeus University, Faculty of Technology, Department of Media Technology.
    Borie, Francisco
    University of Los Andes, Chile .
    Luna, Martín
    University of Los Andes, Chile .
    CollPhoto: A Paper + Smartphone Problem Solving Environment for Science and Engineering Lectures2014In: Collaboration Technologies and Social Computing: 7th International Conference, CollabTech 2014, Santiago, Chile, September 8-10, 2014. Proceedings / [ed] Takaya Yuizono; Gustavo Zurita ;Nelson Baloian ;Tomoo Inoue; Hiroaki Ogata et al. (Eds):, Springer, 2014, p. 1-15Conference paper (Refereed)
    Abstract [en]

    Recent studies in science and engineering education support that inductive learning activities encouraging active student involvement may improve students’ motivation, development of soft skills and academic performance, compared to traditional lectures. Until recently, several technology-enhanced learning environments have been proposed to facilitate such activities in classrooms. However, these commonly depend on dedicated hardware devices, such as clickers or tablet PCs. Contrastingly, smartphones are being massively adopted by society as these become increasingly powerful and inexpensive. Even so, the use of smartphones as learning tools in lecture halls has still not been widely adopted. In this paper we present CollPhoto, a paper-plus-smartphone environment that supports face-to-face problem solving activities in the classroom. CollPhoto provides the instructor with instant visibility of students’ work, and facilitates him/her conducting discussions, based on a selection of students’ responses. We report on the design and initial validation of CollPhoto in the context of two computer science courses.

  • 20.
    Andersson, Andreas
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Lindquist, Karin
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Fördjupning i skadestatistik inom sjöfarten: En analys av anmälda arbetsolyckor 2011 – 2013 utförd på uppdrag av Sjöfartens Arbetsmiljönämnd2015Independent thesis Basic level (degree of Bachelor), 10 HE creditsStudent thesis
    Abstract [en]

    The purpose of this thesis was to analyse the reported work-related accidents in shipping by using frequency combined with consequence. Thereafter the purpose was to reach conclusions regarding which work-related accident was the most serious. The thesis also aimed to find if there were any connections between these accidents. Statistics were ordered from the Swedish Work Environment Authority. These statistics were processed in several ways, for instance demarcations regarding position onboard was made. Since the conditions of reporting workrelated accidents had changed during time, relevant years was chosen after consideration. The result of the study shows that when a person experiences an accident where he or she stumbles, trips, slips or treads heavily, the person is more likely to have a long sick-leave. These types of accidents are also the most common ones. To lose control of equipment or to lose control of equipment used to move material is also a common accident leading to a long sickleave. The only connection found is that the external factor hawser is present at several accidents with different consequences and cause.

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    fulltext
  • 21.
    Andersson, Caroline
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Eklund, Henrik
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Toxiska luftföroreningar ombord på fartyg: Riskbedömning av svensk ombordpersonals yrkesmässiga exponering för toxiska luftföroreningar2016Independent thesis Basic level (degree of Bachelor), 10 HE creditsStudent thesis
    Abstract [en]

    The main purpose of this study was to measure and evaluate the air quality onboard two Swedish ships, and compare the results with the exposure limits laid out by the Swedish Work Environment Authority (Arbetsmiljöverket) and the Swedish population’s exposure to various substances. The results of this study were also meant to be helpful to form new advice and recommendations to minimize exposure and also to provide material for future studies.

    During approximately one week onboard the two ships data were collected using passive samplers to register levels of benzene, nitrogen dioxide and polycyclic aromatic hydrocarbons.

    The results indicated that the air quality onboard the two ships were generally good. All measured concentrations were well below safety applications and it did not differ very much neither between ships nor compared with the Swedish population’s exposure. In conclusion, Swedish sailors onboard Swedish ships are not in greater danger of toxic air pollutants onboard compared to when they are at home.

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    Toxiska luftföroreningar ombord på fartyg
  • 22.
    Andersson, Hans
    Linnaeus University, Faculty of Technology, Department of Media Technology.
    Visualisering av avatarens hälsa och dess effekt på spelarens prestation: En studie av in-game information i det grafiska gränssnittet2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    As digital gaming technology has evolved and the games has become more advanced, the amount of information that the player can get about their avatar (the player's digital representation) has increased. Depending on the layout and design of the game, this information is more or less readily available. The information that always seems to have a more or less evident place in HUD (static parts of the graphical interface) is the avatar's state of health. There are several guidelines on how to visualize this information, but game designers are constantly exploring new ways to apply it. Pros and cons of how the information is implemented is discussed by players and game journalists in several forums. Frequently focusing on what it does for the game's challenge and the gaming experience.Previous research that attended the avatar's health has investigated how different mechanics behind the graphic visualization affect the gaming experience. However, there is a research gap when it comes to how the graphic visualization of the avatar's health affects the player's performance.This study examines how a player's performance is influenced by obtaining information about the avatar's health through the graphical interface. The study is based on an ongoing discussion of how the mechanics of the avatar's health and its visualization affects the game's challenge.A literature study was conducted on the subject game design focusing on how the graphic interface of a game should be designed. After that, a game prototype was developed for the study in which the literature study formed the basis for how a graphic representation of the avatar's health was implemented. In the prototype, functionality was added to completely exclude the graphic representation of the avatar's health every other time the game started. Functionality was also applied in the prototype to collect data during the game. The data was saved in a database set up for the study.With use of the two game modes of the prototype, a qualitative preliminary study was conducted in the form of supervised game sessions with follow-up semi-structured interviews. A comparative study was conducted by letting half of the participants play with a visible health bar and the other half without. The participant's reasoning on issues related to the research question was analyzed to give a deeper understanding of the quantitative data that was collected by making the prototype available through the web.After each completed game of the prototype, it was registered alongside the score if the game had been played with a visible health bar or not. Other information intended to answer the research question for the study was also registered. After the preliminary study was conducted the prototype was published on the web, this resulted in data from 259 game rounds was collected and stored in the database. After selection according to study delimitations, data from 62 game rounds have been used for the for the study's quantitative research backing.To conclude, the results differ between the qualitative and the quantitative studies. During the qualitative study, a distinction was made in the reasoning between those who played with a visible health bar and those who had been playing without. This was used to analyze and compare the collected data from the web-based prototype. The collected quantitative data, however, does not show any statistically safe difference in performance between those who played with a visible health bar and those who played without one.

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  • 23.
    Andersson, Klara
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Ledarskap till sjöss: Utmaningar med multikulturellt ledarskap ombord i fartyg2018Independent thesis Basic level (degree of Bachelor), 10 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study is to investigate possible challenges regarding multicultural leadership at sea, and to see if these differ from challenges connected to multicultural leadership ashore.

    Considering the special conditions onboard a ship, and based on previous studies and literature, five components for successful multicultural leadership at sea has been identified. These five components have been the base of an interview guide, which has been used to conduct interviews with twelve seafarers onboard a Swedish flagged ship. The seafarers were asked what they consider to be good leadership, their expectations on leadership and how they feel affected by the environment onboard.

    According to the interviews, the seafarers feels that the most important traits for a leader is to be fair, kind and knowledgeable. The seafarers appear to be aware of the expectations connected to their roles onboard, but they do not seem to contemplate that people from different cultures may have different expectations on their role. Based on the literature study and the interviews, one can make out that a ship-specific culture rules the social environment onboard. The crewmembers seem to primarily adapt and adjust to this ship-specific culture, and their own national culture comes in second hand.  In conclusion, the biggest challenge of multicultural leadership at sea is recognized to be the ability to be a fair and kind leader in an isolated and wearying environment.

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  • 24.
    Andersson, Michael
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Arvidsson, Jonathan
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Masslivräddning, resurser och brister: En studie om Sveriges beredskap och handelsfartygens förmåga2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    During the last decades there have been several great ship disasters where rescue capability has not been sufficient to save all or even a majority of the victims of a number of larger marine disasters. This is despite the fact that great efforts have been made to improve the life-saving equipment on board. Merchant ships which encounter any other ship in distress are required by law to assist in the rescue. This study was made to illustrate what resources exist in Sweden to handle major ship emergencies at sea and to what extent the merchant fleet is able to help. The study was done as a literature study with a few additional questions to shipping companies. Both merchant ships and the Swedish Maritime Administration's specialized rescue units have proven to be far too poorly equipped or too few to handle their task in rough weather conditions, which are often associated with ship disasters. Much of the responsibility for getting crew and passengers to safety after an accident is instead transferred to helicopters which fly out to the emergency location from land. Many technical problems have been found that makes it difficult to evacuate via helicopters during multiple ship disasters, as helicopters are sensitive to severe weather. A development of equipment that can be used in rough weather conditions without having to move people one by one between different crafts needs to be developed. Relying solely on helicopters for mass evacuation has proved to be too time-consuming and vulnerable.

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  • 25.
    Annerbrink, Totte
    et al.
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Talovic, Nizar
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Den avskalade effekten: Om effekten av ett minimalistiskt skrivverktyg och hur det upplevs i en interaktiv användningssituation2017Student paper second term, 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This thesis and report has addressed and focused on identifying the interaction effect that occurs when an information system's interface is scaled off and is minimalistic. This case study is based on a web-based writing tool called Writer. The purpose of the research has been to clarify the personal interaction effect in an interactive usage situation and how it in turn affects the user experience. The theoretical field and framework of the study is Actability , focusing on the interactive action level in connection with The Elementary InterAction Loop . The Elementary InterAction Loop consists of four steps where the user asks, does, gets an answer and then evaluates. In conjunction with the theory, five interaction criteria have been incorporated, which are; Clear Action Repertoire , Intelligible Vocabulary , Action Transparency , Clear Feedback , and Amendability . These five criteria have been the thematization of the empirical work.

    Through both targeted selection and snowball sampling, six journalists/writers have been involved in collecting data. In the method work, user test was performed on the writing tool with tasks formulated in accordance to the five interaction criteria. In the method work, user tests was performed on the writing tool. Thereafter the tasks was formed according to the five interaction criteria from the theoretical framework. All informants evaluated their experience and made thirteen statements based on a user experience questionnaire where concepts such as easy to learn/not easy to learn and effective/ineffective were asked for. Following these two steps in the empirical study, semi-structured interviews were conducted with fifteen questions based on the five interaction qualities. In order to analyze the collected data, the content analysis method was applied which resulted in 25 categories with descriptions and quotes. Based on a content analysis and its results, the categories were then analyzed using the D.EU.PS model and its 18 classes. The analysis resulted in ten interaction effects placed in seven different classes. The result and the ten interaction effects are: Security, Previous references, Terminology, Recognition, Understanding of sequence/action, Perception, Simplicity, Efficiency Availability and Grouping (proximity). Based on personal behavior as a perspective, these effects are the result of a minimalistic writing tool that contributes to a good user experience.

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    Den avskalade effekten
  • 26.
    Arvidsson, Andreas
    et al.
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Johansson, Viktor
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Förutsättningar för applicering av agila projektprinciper inom tillverkningsindustrin: En fallstudie med fokus på ständig förbättring2017Independent thesis Basic level (university diploma), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [sv]

    Syftet med denna studie är att undersöka hur och vilka agila principer som kan appliceras i projekt inom tillverkningsindustrin. Studien har skett på fallföretaget KalmarGlobal och resultatet visar att det inte går att implementera agila projektmetoder rakt av, men att det däremot finns principer inom det agila som kan och bör implementeras för att få företagets projektarbete mer effektivt. Dessa är bl a enklare dokumentering, stå-upp-möten och självstyrande grupper.

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  • 27.
    Ayob, Kibret
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Varumärkesstrategi på webben: Tillämpning av användarcentrerad design för positionering på webben2015Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    Purpose: Corporations experience difficulties positioning themselves on the web as a result of not developing their websites in a way that is inline with their overall business strategy. The purpose of this study is to explore how corporations should apply design strategy, based on a user-centered design perspective, to support their overall business strategy on the web.

    Originality/value: This study has identified a knowledge gap in terms of how corporations define and apply design strategy in order to support their overall business strategy on the web.

    Methodology: This study aims to research the application of design strategy by creating a prototype through the use of a user-centered design process. This was done by interviewing experts as well as evaluating websites, in order to explore the domain of a car manufacturers retailers, which was based on the corresponding strategy of leading the visitor to the car manufacturers offerings that are represented by the retailers and their websites. This data collection was the foundation in the creation of a persona and context scenarios that was translated into identified needs that represented the products design strategy. The design strategy in turn was the foundation for the creating phase of the user-centered design process, where iterative design lead to refining framework sketches and an interactive prototype.

    Findings and conclusion: The study which resulted in an interactive prototype shows that user-centered design, which applies design strategy by defining the corporations and the users goals and needs, is an alternative that allows for structured refinement to the point that the website fulfills its design strategy. The results also show that depending on how well the domain exploration is executed as well as how well the design strategy is defined will affect the resulting website and to what extent it fulfills its purpose, whether it’s is still a prototype or if it’s the end result.

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    Varumärkesstrategi på webben: Tillämpning av användarcentrerad design för positionering på webben
  • 28.
    Backlund, Johan
    et al.
    Linnaeus University, Faculty of Engineering and Technology, Kalmar Maritime Academy.
    Nordberg, Robin
    Linnaeus University, Faculty of Engineering and Technology, Kalmar Maritime Academy.
    Ny elektrisk installation på Sjöfartshögskolans ångpanna: Ett projekt från planering till utförande2013Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Kalmar Maritime Academy has a boiler that is used for educating marine engineers, technicians and service engineers. The boiler is used to provide students with training in programming of the control system and also to gain practical knowledge of the control equipment. The original electrical installation for the control and monitoring system was impractically designed, where a switching of cable connections in the system was required when changing between different exercises. There were also absences of real documentation for the installation. Due to these circumstances, the Maritime Academy’s planned expansion of the facility was deemed to be too complicated in its current state. The purpose of our assignment was to develop a solution for a new electrical installation for the boiler and also the practical implementation of this new installation. The goal was for the operator to easily be able to operate the boiler and also to simplify the changeover between the different types of exercises without having to reconnect any cables. The electrical installation would also get a new look with a new housing that would better represent a modern electrical installation. To achieve the objectives for the assignment a project method was chosen, which is preferred when planning and for completion of a specific task. The result of this project where a new electrical installation to the Maritime Academy’s steam boiler that has an improved safety, better ease of use for the operator and has a new modern design.

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    Ny elektrisk installation på Sjöfartshögskolans ångpanna
  • 29.
    Balegh, Walid
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM).
    Communication and Adaptation in a Ubiquitous Environment2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Context awareness means sending the right information to the right user at the righttime. Context is our environment, which can be anything around us such as location,lights, noises etc. To make the context interact with our mobile devices or sensors,there must be protocols for communication and data formats for the “sent” or “received”contextual information so we can give very specific context information tothe user. Since this communication and adaptive part is not well understood, in thispaper we are interested in investigating the technology used for adaptation. We willalso explain how this technology works to adapt itself to changes in the environment.

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  • 30.
    Bengtsson, Camilla
    et al.
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Englund, Caroline
    Linnaeus University, Faculty of Technology, Department of Informatics.
    “Do you want to take a short survey?”: Evaluating and improving the UX and VUI of a survey skill in the social robot Furhat: a qualitative case study2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this qualitative case study is to evaluate an early stage survey skill developed for the social robot Furhat, and look into how the user experience (UX) and voice user interface (VUI) of that skill can be improved. Several qualitative methods have been used: expert evaluations using heuristics for human-robot interaction (HRI), user evaluations including observations and interviews, as well as a quantitative questionnaire (RoSAS – Robot Social Attribution Scale). The empirical findings have been classified into the USUS Evaluation Framework for Human-Robot Interaction. The user evaluations were performed in two modes, one group of informants talked and interacted with Furhat with the support of a graphical user interface (GUI), and the other group without the GUI. A positive user experience was identified in both modes, showing that the informants found interacting with Furhat a fun, engaging and interesting experience. The mode with the supportive GUI could be suitable in noisy environments, and for longer surveys with many response alternatives to choose from, whereas the other mode could work better for less noisy environments and for shorter surveys. General improvements that can contribute to a better user experience in both modes were found; such as having the robot adopt a more human-like character when it comes to the dialogue and the facial expressions and movements, along with addressing a number of technical and usability issues.

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  • 31.
    Bengtsson, Lukas
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Brus, Robert
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    No Risk, No Reward: En studie över hur individens riskförståelse påverkar säkerhetsarbetet ombord2016Independent thesis Basic level (degree of Bachelor), 10 HE creditsStudent thesis
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  • 32.
    Bengtsson, Viktor
    et al.
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Skarheden, Philip
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Ökat kapacitetsutnyttjande genom reducerad processvariation: 2016Independent thesis Basic level (professional degree), 180 HE creditsStudent thesis
    Abstract [sv]

    Studien är utförd på ett fallföretag med syftet att skapa en djupare förståelse för hur stabilisering av en produktionsprocess påverkar kapacitetsutnyttjandet.

    Nuläget analyserades genom observationer, intervjuer och företagets egen dokumentation. Två experiment utfördes vilket resulterade i att ett samband hittades mellan variationer och kapacitetsutnyttjandet i en produktionsprocess. Vidare avgränsades vilka produktionsförutsättningar som gav högst kapacitetsutnyttjande. Slutligen presenteras hur det ökade kapacitetsutnyttjandet påverkar de ekonomiska resultaten samt studiens slutsats och rekommendationer till fallföretaget. 

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    Ökat kapacitetsutnyttjande genom reducerad processvariation
  • 33.
    Bentzen, Charlotta
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Personlig vårdhjälp: En kvalitativ studie kring information till cancerpatienter i komplexa vårdsituationer2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

     

    Much of cancer patients treated in Sweden feel that they receive inadequate information in connection with disease notification and treatment. Previous research has shown that a majority of these patients feel that they received too little information and they do not understand the information they received.

     

    The purpose of this project is to investigate whether information technology, in the form of an application,  can obtain personalized context-based quality information whenever the need arises. The application should also make it possible for the patient to be able to come in contact with the caregiver, via email, telephone or voice and video calls.

     

    To get a cancer diagnosis usually leads to a traumatic crisis which, in varying degrees, limit the ability to assimilate information. This, together with a very demanding treatment, both physically and mentally, places the patient in a very vulnerable situation. Being well-informed about the disease and treatment may help patients to more easily manage their situation and to improve mental well-being.

     

    In this work, pre-treated cancer patients were interviewed to determine what they feel is important for cancer patients to feel well informed, and the way in which an application could contribute to this. All the interviews showed that participants experienced that there was inadequate information in connection with their disease and treatment. The interviewees were aware that they had received information during their illness but their experience was that it was incomplete and performed at a time when they could not assimilate it.

     

    The interviews revealed proposals on the content of an imaginary application, all in one way or another related to information. The proposals were sorted under six headings which then became the inputs on the intended application's home page. A mockup was designed to demonstrate a proposal on the home page.

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  • 34.
    Bergkvist Bäcklin, Martin
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Johansson, Johan
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Belastningsergonomi och arbetsmiljörisker vid maskinrumsarbete på fartyg: Riskbedömning av underhållsarbete på separatorer2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of the study is to identify work hazards by analyzing the work activities and work environment during a separator overhaul onboard a ship. To identify risks the study used the Swedish Work Environment Authority´s regulation AFS 2012:02, the assessment form KIM 1 and a biomechanical program ALBA. The results show that there are risks for stress load on the body and that there is room for improvements. An example of an improvement is to design an additional workbench to allow proper work postures and decrease the number of lifts. The results also show the importance of using the right technique while lifting to reduce the chance of stress load. The study can be used for further studies on the work environment hazards onboard ships.

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  • 35.
    Berglund, Frida
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Mattisson, Julia
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Vad krävs för att genomföra en säker livbåtsövning?2017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Frequent abandon ship drills should be carried out on every ship covered by SOLAS (Safety Of Life At Sea, explained in the theoretical chapter). Abandon ship drill entails a risk of damage to the equipment and injury to the people handling it. The purpose of this study is to see into what is required to achieve a safe abandon ship drill. This is a qualitative study where the objective is answered by interviewing crew members that has experience of creating safe abandon ship drills. A total of ten crewmembers has been interviewed. The study shows that the safety of these drills is dependant on four factors; equipment, knowledge, cooperation and motivation. These factors where derived from previous reports, research and from the data obtained from the interviews. These factors are dependant on one another and can also be viewed as a spiral where one factor gives momentum to the next.

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  • 36.
    Berglund, Johan
    Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.
    After Fukushima: Safety culture and fostering critical thinking2020In: Safety Science, ISSN 0925-7535, E-ISSN 1879-1042, Vol. 124, p. 1-6, article id 104613Article in journal (Refereed)
    Abstract [en]

    This paper discusses the background and aftermath of the Fukushima Daiichi accident, exploring safety culture in relation to three essential elements: (I) knowledge, (II) leadership (power), and (III) critical thinking. In my discussion, I establish links between safety culture and these key issues, advocating a long-term outlook on safety and risk management. These findings are based on case study analyses, involving evaluations of accident reports, dialogue seminars, and interviews with representatives of the nuclear community in Japan and Sweden. For the most part, the argument I will pursue is not concerned with what Japan could or should have done differently but the trials and hazards of our society. How, then, can we give the Japanese experience a broader significance? In safety-critical activities, we consider best practice the reliable response although its formulas may have to be modified to particular conditions and circumstances. In other words, there are tacit dimensions of knowledge related to professional activities that are vital to their overall quality. However, the impact of commercial pressures, formalization and the desire to measure, monitor, and control the culture and behavior of workers may force professionals to deprioritize their judgments. Also, disempowerment of knowledge tends to upset the proactive and critical thinking of operatives and employees. If we interpret this as a process of complacency or degeneration, we should consider possible counterweights.

  • 37.
    Berglund, Jonny
    et al.
    Linnaeus University, Faculty of Engineering and Technology, Kalmar Maritime Academy.
    Gredmar, Daniel
    Linnaeus University, Faculty of Engineering and Technology, Kalmar Maritime Academy.
    En riskanalys av ECDIS Simulatorerna vid Sjöfartshögskolan i Kalmar2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Modern ships have the ability to navigate with the use of ECDIS only. ECDIS is dependent on many subsystems to function optimally. Failure Mode and Effect Analysis (FMEA) is a tool with which you can examine a specific system to detect potential construction errors and deficiencies in the production design. This thesis has used a FMEA to investigate ECDIS simulators at Sjöfartshögskolan in Kalmar to examine how ECDIS was affected when one or more of the subsystems connected to ECDIS have failed. The purpose of this study was to detect design errors, deficiencies and limitations of the ECDIS simulators at Sjöfartshögskolan in Kalmar. It could be demonstrated that some of the alarms in ECDIS that should alert the navigator that a subsystem has failed not has worked according to the manufacturer´s instructions. Additionally has some features of ECDIS not operated according to the manufacturer's instructions and some simulator functions which should test a specific situation in a safe environment have not worked.

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    En riskanalys av ECDIS Simulatorerna vid Sjöfartshögskolan i Kalmar
  • 38.
    Bergqvist, Anna
    Linnaeus University, Faculty of Technology, Department of Forestry and Wood Technology.
    Trädslagsval och trädslagsförändring i Krånge mellan åren 1864 – 2010/20112013Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [sv]

    Syftet var att beskriva trädslagsförändringen i Krånge skog under perioden 1864 – 2010/2011. Vidare att reda ut var utvecklingen leder, - hur resonerar dagens skogsägare vid trädslagsval och vad styr dem? För att besvara frågorna jämfördes en Laga skifteskarta från år 1864 med ett ortofoto från 2010/2011. Vidare skickades en enkät ut till 18 skogsägare i Krånge.

    Resultatet visade att många avdelningar bevuxna med gran i mitten av 1800-  talet har ersatts med tall. Skogsägarna valde trädslag främst utifrån ståndortens egenskaper och tidigare trädslag på platsen. Valet påverkades inte av eventuella skaderisker eller andra orsaker. 

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    Trädslagsval och trädslagsförändring i Krånge mellan åren 1864 – 2010/2011
  • 39.
    Bergsaker, Agnethe
    Linnaeus University, Faculty of Technology, Department of Informatics. Centrum för Informationslogistik.
    Standardsystem och användbarhet: Hur ska man som utvecklare säkra att användbarhet uppnås i små SharePoint-projekt?2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Today, ICT (Information and Communication Technology) is often used to distribute and communicate information internal and external. One of the great tools for information management is the intranet. This research is focused on usability regarding small SharePoint-projects. Usability covers the factors: usefulness, customization and user acceptance. A small SharePoint-project (less than 300 working hours) has fewer resources available for focusing on usability.

    The purpose with this research is to examine developers’ attitudes regarding usability and how usability is best achieved in small projects where resources are limited. A quantitative method has been used to conduct a case study consisting of three developers in a consulting company. The interviews were semi-structured.

    The result from the research concludes that user acceptance is the key factor for an intranet to be perceived as useful by the users. Usefulness in a standard SharePoint solution is relatively defined and in place. Customization of a solution instead of using the built-in standards is often more costly and resource intensive. Developers should therefore focus on education, user involvement, communication and other factors that may increase acceptance among the end users.

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    Examensarbete i Informatik: Standardsystem och användbarhet - Agnethe Bergsaker
  • 40.
    Bernekorn, Johan
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Ny som kapten på ett litet fartyg: Att föra befäl ombord på ett fartyg man saknar tidigare erfarenhet från2016Independent thesis Basic level (professional degree), 10 HE creditsStudent thesis
    Abstract [sv]

    Efter att ha tagit examen från det fyraåriga sjökaptensprogrammet på Kalmar Sjöfartshögskola söker vissa studenter anställning som befälhavare på ett fartyg under 70 brt trafikerandes inre fart. Utbildningen är utformad till att i första hand ge studenterna de förutsättningar som krävs för en anställning som styrman ombord på ett större fartyg. Syftet med denna studie var att undersöka hur de nyutexaminerade studenterna upplevde sin kompetens inför arbetet som befälhavare och ifall deras avsaknad av tidigare erfarenhet från fartygstypen gav upphov till några risker. En kvalitativ intervjustudie genomfördes med sex utvalda befälhavare som före anställningen saknade tidigare erfarenhet av fartygstypen. Resultatet visade att befälhavarna kände en nervositet inför delar av arbetet, främst kopplad till fartygsmanövreringen och avsaknaden av någon ombord att fråga om hjälp. De ansåg sig under arbetets inledande skede sakna den erfarenhet som krävdes för att under alla omständigheter kunna garantera fartygets säkra framförande. 

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  • 41.
    Berntsson, Adam
    et al.
    Linnaeus University, Faculty of Technology, Department of Mechanical Engineering.
    Stenberg, Gustav
    Effektiv projektkoordinering i en multi-projektorganisation: En fallstudie på Holtab AB2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    På marknaden idag sätts det allt större krav på att företag ska kunna leverera unika produkter med hög kvalité för vara så attraktiva på marknaden som möjligt. Det har därför blivit allt mer vanligt inom industrier att man delar av sin standard produktion till projektbaserad produktion för att lösa specifika uppgifter. De företag som har många projekt samtidigt är oftast utformad som en multi-projektorganisation. Det karakteristiska draget för en multi-projektorganisation är att fler projekt bedrivs parallellt av samma personal. Fördelen med detta arbetssätt är att företag kan använda de mänskliga resurserna på ett effektivt sätt, då kunskap kan överföras mellan de olika projekten. Projektledarnas roll i företaget blir då allt viktigare samt en effektiv projektstyrning och projektkoordination. I en multi-projektorganisation så kan störningar i ett projekt påverka de övriga projekten. Det är därför viktigt med en jämn fördelning av arbetet och beläggning för projektledarna, inte bara för projektets resultat utan även för arbetsmiljön så att inte det skapas onödig stress eller ovisshet. Projektkoordinatorns roll i organisationen blir då att koordinera projektledarna så deras arbetsmiljö blir hållbar. Att arbeta i en multi-projektmiljö förväntas att öka i framtiden men det finns lite studier inom detta område. Speciellt hur man undviker problemen och vilka förutsättningar som är viktiga för att bedriva en hälsosam och effektiv projektkoordinering.

    Syftet med denna studie är att undersöka vilka förutsättningar som är viktiga vid projektkoordinering och föreslå hjälpmedel för projektkoordinatorns dagliga arbete. Detta sker genom att undersöka projektkoordinering i ett fallföretag och få en förståelse för deras arbetssätt och metoder. Resultatet används för att utveckla och säkerställa en bra och hållbar arbetsmiljö för de anställda samt höja effektiviteten för projektorganisationen.

    Datainsamling har skett genom en kvalitativ fallstudie på Holtab AB. Den har gjorts genom intervjuer och observationer samt studier av dokument. Samtidigt gjordes en kvantitativ datainsamling för att ta reda på vilka problem som generellt förekommer på företag där projektledarna arbetar med flera projekt samtidigt. Detta gjordes genom enkäter via mail.

    Det har blivit tydligt under studien att företag som arbetar i bygg- eller tillverkningsindustrin har speciellt svårt att planera framtiden då projekten måste startas direkt och leveranstiderna är korta. Ett problem som Holtab´s organisation har i dagsläget är att de inte har en korrekt överblick på projektledarnas beläggning. Holtab är just nu i en fas där deras projektorganisation växter och det har anställts fler projektledare under de senaste åren, vilket har gjort att projektchefens roll som projektkoordinator har blivit allt mer nödvändig. Tillsammans med Holtabs projektchef och projektledarna så skapades en kravspecifikation för ett verktyg. Verktyget fick namnet PCAO (Projekt Coordination And Overview) och hade som mål att hjälpa projektorganisationens dagliga arbete och vara ett stöd till projektkoordineringen. PCAO ger projektkoordinatorn möjlighet att få en överblick över hur projektledarnas tid är fördelade i nuläget och i framtiden. Detta ger en möjlighet att kunna se framtida kritiska moment då projektorganisationen är överbelastade under en period. Genom en bra överblick av projektorganisationen så kan fördelningen av projekt hanteras smidigare, vilket gör att det blir lättare att se till att det blir en jämnare arbetsfördelning. Detta resulterar att projektkoordinatorn kan ge projektledarna en bättre arbetsmiljö och bättre förutsättningar för att kunna göra ett så bra och effektivt arbete som möjligt.

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    Effektiv projektkoordinering i en multi-projektorganisation: En fallstudie på Holtab AB
  • 42.
    Bertilsson, Robin
    et al.
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Date, Daniel
    Linnaeus University, Faculty of Technology, Department of Informatics.
    E-handelsplattformar som är anpassade för skalbarhet och ökad försäljning: En jämförelse mellan e-handelsplattformar.2017Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this study 14 e-commerce platforms are compared based on their functionality. The functionality has been identified to increase sales and facilitate scalability. To rate the impact of the functions, e-tailors in the niche of clothing and accessories were asked to respond a questionnaire. To identify relevant functionality for both of the approaches, the researchers used literature. The functionality were used as a framework when comparing the 14 e-commerce platforms. This study indicates that all functions are not equal. Responsive design and multiple payment solutions are considered most critical and are directly linked to increased sales figures. For the e-retailers to achieve scalability, this study finds that purchasable add-ons and themes plays a big role. The e-commerce platforms were rated thanks to data collection and data analysis. Abantecart and Opencart both received high ratings regarding functionality and the ability to increase sales numbers and enable future expansions.

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    fulltext
  • 43.
    Bisson, Christophe
    et al.
    Kadir Has University, Turkey .
    De Kervenoal, Ronan
    Sabanci University, Turkey;Aston Business School, UK .
    Ozturkcan, Selcen
    Özyeğin University, Turkey.
    Social e-Atmospherics in Practice (or not): A French and Turkish Web Designers’ Perspectives2009Conference paper (Refereed)
    Abstract [en]

    Little is known about the development of social e-atmospherics. And yet, e-atmospherics have motivated an emerging body of research which reports that both better layouts and ‘recognized’ atmospherics encourage consumers to modify their shopping habits. While the literature has analyzed mainly the functional (design) aspect of e-atmospherics, little has been done in terms of linking its characteristics’ to social (co-) creation. This paper attempts to redress the imbalance by exploring the anatomy from a website designer perspective of the social dimension of design in relation to e-atmospherics, which includes factors such as the aesthetic design of space and the influence of visual cues as a socially constructed meaning. We identify the challenges that web designers as social agents, who interact within intangible social reference sets, restricted by social standards, value, beliefs, status and duties, face daily within their work. We aim to review the current understanding of the importance and voluntary integration of social cues displayed by web designers from a mature market and an emerging market, and provides an analysis based recommendation towards the development of an integrated e-social atmospheric framework. Results report exploratory findings from questionnaires with 10 French and 16 Turkish web designers. These allow us to re-interpret the web designers’ reality regarding social e-atmospherics. We contend that by comprehending (before any consumer/client input) social capital, daily micro practices, habits and routine of designers, a deeper understanding of social e-atmospherics possible functions in the future will be unpacked.

  • 44.
    Björk, Jonas
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Lennstam, Klas
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Svaveldosering av biopanna: En utvärdering av doseringen med svavelgranuler för att minska utsläpp av kolmonoxid från biopannan hos Arvika Fjärrvärme2014Independent thesis Basic level (degree of Bachelor), 180 HE creditsStudent thesis
    Abstract [en]

    This study was performed in order to analyze and evaluate the effects of dosing sulfur to the combustion process in a bio fueled boiler. Equipment for this purpose was installed to the bio boiler at a district heating plant in Arvika in order to overcome high levels of carbon monoxide in the flue gas. The analysis has been carried out with regard to how well the sulfur dosage is fulfilling its intended purpose but also to possible side effects. Corrosion risks, levels of unburned sulfur in flue gas, flue gas condensate, air and bottom ash along with what happens chemically in the combustion process have been studied. Operational reports from the bio fueled boiler was studied and analyzed. To find out other effects of adding sulfur to the combustion a literature study was performed as well as direct contact with experts on the subject. CO content in the flue gas drops when adding sulfur to the combustion process. Laboratory analysis and operational reports indicate a presence of sulfur in the flue gas, flue gas condensate and fly ash and bottom ash. The results show that the levels are acceptable. The risk of causing corrosion in the plant by adding sulfur to the combustion is considered low. The current knowledge of what is happening chemically in the combustion process by the addition of sulfur is insufficient. Full-scale and laboratory experiments have been carried out without being able to show exactly how the sulfur lowers CO concentrations in flue gases.

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  • 45.
    Blom, David
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Böta Kvarn kraftstation: Gammalt blir nytt2013Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [sv]

    Detta arbete inriktar sig att modernisera Böta Kvarn Kraftstation. Stationen är gammal och dess utrustning är i behov av en uppgradering. För detta ändamål togs de fram offertunderlag innehållande en teknisk beskrivning med tillhörande information angående kraftstationen. Denna skickades till flertalet leverantörer varvid Cargo & Kraft och Vattenkraftsbolaget svarade. Valet föll på Cargo & Kraft. Deras lösning är en semikaplan med tillhörande utrustning som teoretiskt kan generera ca 1.57 GWh per år. Detta ger en ökad produktion av 1,22 GWh och en ökad inkomst för kraftstation av ca 941 500 kr per år. Stationens tillgänglighet kommer via uppgraderingen att öka och anläggningen blir helautomatisk med bland annat sms-larm vid driftproblem.

  • 46.
    Blom, Åsa
    et al.
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Johansson, Jimmy
    Linnaeus University, Faculty of Science and Engineering, School of Engineering.
    Sivrikaya, Hüseyin
    Some factors influencing susceptibility to discoloring fungi and water uptake of Scots pine (Pinus sylvestris), Norway spruce (Picea abies) and Oriental spruce (Picea orientalis) 2012In: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280, Vol. 8, no 2, p. 139-144Article in journal (Refereed)
    Abstract [en]

    The heartwood and sapwood from Scots pine (PS), Norway spruce (PA), and Oriental spruce (PO) were tested for susceptibility to discoloring fungi and water uptake. In addition, annual ring width and density were measured. The methods used were Mycologg for testing growth of fungi and a modified version of EN 927-5 to investigate water uptake. For pine, the heartwood showed a lower water uptake and no discoloring fungi growing in the tests. The heartwood had a significantly higher density and smaller annual ring width than the sapwood. In PA the heartwood had significantly lower discoloration than sapwood. The total water uptake in g/m2 was significantly higher in sapwood, but not the calculated moisture content. As for wood properties, the density was significantly higher in sapwood compared to heartwood, although there were no differences in annual ring width. Regarding PO, differences in water uptake could be seen between sapwood and heartwood although the densities were similar. These results show that susceptibility to discoloring fungi and water uptake is hard to correlate to a single inherent property when looking at different wood species.

  • 47.
    Blomgren, Caroline
    et al.
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Tönnkvist, Sabrina
    Linnaeus University, Faculty of Technology, Department of Informatics.
    Design för bibehållen trovärdighet och tillit i digitala gränssnitt2015Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    For a society to function, people have to feel trust in the social system they are a part of. These systems may consist of both social and cultural structures. In line with recent technological developments, more and more people gained access to the Internet. This means that terms such as credibility and trust are also central in the digital world. Today an increasing share of Sweden's population manages their finances online using online banking. Other payment solutions have also been developed to meet the needs that have arisen with the increasing development of E-commerce. There are several different digital payment solutions used for different types of transactions. A need to develop a payment solution that includes more types of transactions are therefore interesting for both the companies that provide these payment solutions aswell as for those who use them. But if you take an existing payment solution and expand it to include more functions or other types of transactions, how do you maintain the users sense of credibility and trust? Previous research on credibility and trust in the digital world seems primarily to be focused on how credibility and trust is created in the initial phase. The purpose of this study was to identify what should be considered when users already feel credibility and trust in a digital payment solution when more functions are to be implemented. To answer this, the following research question was formulated ”How can trust and credibility be kept when implementing new services in digital user interfaces” To explore this, interviews and questionnaires on the concept of credibility and trust focusing on digital payment solutions were conducted. The results of these were modeled into personas, and the results along with the theoretical framework also formed the basis for the 11 design principles used when expanding a service while trying to maintain credibility and trust. Based on these design principles an interactive prototype was developed and tested with users. The user tests were conducted to investigate whether or not the design principles had contributed to maintain the perception of credibility and trust. To do this we compared the perceived credibility and trust of the prototype with the existing payment solution. The results showed that the prototype, that was developed based on the design priciples, had maintained its credibility and trust. The design principles were guidelines to careful consideration of the visual design, usefulness, brand and reputation. The new design principles could therefore be the answer to the research question.

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    Trovärdighet_Tillit
  • 48.
    Blomgren, Olle
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Lagesson, Håkan
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    En undersökning av miljödatorns beräkningar på Nybro Energi AB2014Independent thesis Basic level (university diploma), 5 credits / 7,5 HE creditsStudent thesis
    Abstract [en]

    The purpose of the paper has been to verify how the environmental datasystem at Nybro Energi AB performs its calculations correctly and if the method is correct.

    An analysis of how the environmental datasystem's calculations are structured were checked. The calculations for errors and could, with the aid of DU-Teknik, create a template for comparison-calculations and other tests.

    The results compared the data values between the template and the environmental datasystem's calcualted boiler-efficiency at different intervals. It has also illustrated how each formula is structured for the environmental datasystem and how they are linked together.

    In conclusion, it can be determined that the environmental datasystem's calculations and the boiler efficiency calculations were consistent. Possible sources of error were measurement error, meaning that more accurate results would have been achieved by a more in-depth and thorough investigation, where all sensors and devices that provide environmental information to the computer could be checked.

    Finally, there is some improvement proposals for Nybro Energi AB to ensure that the environmental datasystem performs more accurate and realistic estimates.

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    fulltext
  • 49.
    Blomquist, David
    et al.
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Larsson, Fredrik
    Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
    Räddningsarbeten i slutna utrymmen: En studie om hur övningar ombord förbereder besättningen för evakuering i slutna utrymmen 2020Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Work in enclosed spaces is a common occurrence on board ships. Unfortunately, accidents associated with confined spaces are also common. In many accidents, even those who intend to help a distressed person in an enclosed space can suffer injuries or in the worst case lose their lives. This results in more people injured or killed than the emergency first had. This study has through a qualitative reaserch method, interviwed six respondents with a semi-structured interview. The respondents consisted of naval officer students from the Swedish Naval Officer Universities in Sweden. The study investigated how the exercises aboard the ships prepare the crew for evacuation from enclosed spaces. The study found that in the respondent’s experience that it is practiced too seldomly and because of that it may arise some uncertainty in those situations. Many respondents felt that they could not save anyone in a fast enough time and that evacuations from confined spaces are a very difficult task.The study’s result indicates a lack of knowledge in the situation of evacuation from enclosed spaces.

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    fulltext
  • 50.
    Bohne, Ulrica
    et al.
    KTH Royal Inst Technol.
    Zapico, Jorge Luis
    Linnaeus University, Faculty of Technology, Department of computer science and media technology (CM), Department of Media Technology. KTH Royal Inst Technol.
    Katzeff, Cecilia
    KTH Royal Inst Technol;Interact Swedish ICT, Eskilstuna.
    The EcoPanel: designing for reflection on greener grocery shopping practices2015In: Proceedings of Enviroinfo and ICT for Sustainability 2015, 2015, p. 221-228Conference paper (Refereed)
    Abstract [en]

    While the purchases of organic food are increasing rapidly, it accounts for only a small fraction of the total consumption, and there is still a big gap between consumer values awareness and the actual consumption. This article explores how detailed personal feedback could help the households to gain insight and reflect on their consumption, the text presents the design process of developing a prototype, the EcoPanel, in collaboration with a major player on the food retail market. Based on the access to detailed tracking of purchase data, the aim of the design was to provide relevant feedback to facilitate for reflection on the user's own food choices. The design prototype is intended to serve as an instrument for insight and reflection and to bring unconscious aspects of grocery shopping to conscious awareness. Following a research through design approach, this article describes the interdependent steps in designing the EcoPanel and design decisions playing a role for users' critical reflection of their food choice practices. It discusses the intention of each module in providing insight. Finally, we discuss how a social practice perspective may be useful for identifying fruitful future research into the design for more sustainable grocery shopping practices

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