Software & Systems Modeling

, Volume 9, Issue 2, pp 161–201

Formal specification of non-functional properties of component-based software systems

A semantic framework and some applications thereof
Regular Paper


Component-based software engineering (CBSE) is viewed as an opportunity to deal with the increasing complexity of modern-day software. Along with CBSE comes the notion of component markets, where more or less generic pieces of software are traded, to be combined into applications by third-party application developers. For such a component market to work successfully, all relevant properties of components must be precisely and formally described. This is especially true for non-functional properties, such as performance, memory foot print, or security. While the specification of functional properties is well understood, non-functional properties are only beginning to become a research focus. This paper discusses semantic concepts for the specification of non-functional properties, taking into account the specific needs of a component market. Based on these semantic concepts, we present a new specification language QML/CS that can be used to model non-functional product properties of components and component-based software systems.


Non-functional properties Formal specification Component-based software engineering QML/CS 


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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Computing DepartmentLancaster UniversityLancasterUK

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