This report presents models that have been developed within a PhD project about continuous cover forestry systems. Each model is developed to serve as a sub-model to describe a specific process within a larger simulation or estimation context. The models are intended for use within simulation and optimization of continuous cover forestry management and competition-dependent branch size estimation. All models presented are representative for uneven-sized Norway spruce on moderate to fertile sites in southern Sweden, corresponding to site indexes between G27 and G34, and latitudes between 56° and 58°.