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Improving the Understandability of Dynamic Semantics: An Enhanced Metamodel for UML State Machines
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Author(s): Eladio Dominguez (Universidad de Zaragoza, Spain), Angel L. Rubio (Universidad de La Rioja, Spain)and María A. Zapata (Universidad de Zaragoza, Spain)
Copyright: 2004
Pages: 20
Source title:
Advanced Topics in Database Research, Volume 3
Source Author(s)/Editor(s): Keng Siau (City University of Hong Kong, Hong Kong SAR)
DOI: 10.4018/978-1-59140-255-8.ch004
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Abstract
A clear understanding of the dynamic semantics of languages involved in the representation of behavior is essential for a large and varied audience such as final users of these languages, CASE tool builders or method engineers. This chapter introduces a proposal aimed at achieving such an understanding by suggesting a different metamodeling approach. This approach is based on a two layer architecture which puts forward the explicit distinction between the generic behavior represented in a dynamic model (Base Layer) and the behavior represented in relation to a particular situation (Snapshot Layer). Using this architecture as a starting point, a metamodel of UML State Machines is proposed, which consists basically of two UML class diagrams (one diagram for each layer of the architecture) and two maps. These maps represent, respectively, the determination of the initial status and the process performed by a run to completion step as defined in the UML semantics.
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