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Building design-time and run-time knowledge for QoS-based component assembly
Linnaeus University, Faculty of Technology, Department of Computer Science.ORCID iD: 0000-0001-6981-0966
Politecnico di Milano, Italy.
Gran Sasso Science Institute, Italy.
2017 (English)In: Software, practice & experience, ISSN 0038-0644, E-ISSN 1097-024X, Vol. 47, no 12, p. 1905-1922Article in journal (Refereed) Published
Abstract [en]

Modern software systems are required to dynamically adapt to changing workloads, scenarios, and objectives and to achieve a certain Quality of Service (QoS). Guaranteeing QoS requirements is not trivial, as run-time uncertainty might invalidate the design-time rationale, where software components have been selected by means of off-line analysis. In this work, we propose a QoS-based feedback approach that makes a combined use of design-time predictions and run-time measurements to manage QoS data over time and support software architects while selecting software components that best fit QoS requirements. We illustrate the feasibility and efficacy of the approach on a case study, where the quantitative evaluation shows how the analysis effectively identifies the sources of QoS violations and indicates possible solutions to achieve QoS requirements.

Place, publisher, year, edition, pages
Wiley-Blackwell, 2017. Vol. 47, no 12, p. 1905-1922
National Category
Computer Systems
Research subject
Computer and Information Sciences Computer Science, Computer Science
Identifiers
URN: urn:nbn:se:lnu:diva-63851DOI: 10.1002/spe.2502ISI: 000414636600003OAI: oai:DiVA.org:lnu-63851DiVA, id: diva2:1096026
Available from: 2017-05-16 Created: 2017-05-16 Last updated: 2018-01-10Bibliographically approved

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Caporuscio, Mauro

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  • Other locale
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