Software and Systems Modeling (SoSyM) is an international journal, publishing six issues yearly, that focuses on theoretical and practical issues in the development and application of software and system modeling languages, techniques, and methods, such as the Unified Modeling Language. The aim of SoSyM is to publish high-quality works that further understanding of the theoretical underpinnings of modeling languages and techniques, present rigorous analyses of modeling experiences, and present scalable modeling techniques and processes that facilitate rigorous and economical development of software.