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The Computer Journal 2002 45(3):260-277; doi:10.1093/comjnl/45.3.260
© 2002 by British Computer Society
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Quantitative Analysis of UML Statechart Models of Dependable Systems

Gábor Huszerl1, István Majzik1, András Pataricza1, Konstantinos Kosmidis2 and Mario Dal Cin2

1 Department of Measurement and Information Systems, Budapest University of Technology and Economics, Hungary Email: huszerl@mit.bme.hu 2 Department of Computer Science III (Computer Structures), Friedrich-Alexander University of Erlangen-Nuremberg, Germany

The paper introduces a method which allows quantitative dependability analysis of systems modeled by using the Unified Modeling Language (UML) statechart diagrams. The analysis is performed by transforming the UML model to stochastic reward nets (SRNs). A large subset of statechart model elements is supported including event processing, state hierarchy and transition priorities. The transformation is presented by a set of SRN patterns. Performance-related measures can be directly derived using SRN tools, while dependability analysis requires explicit modeling of erroneous states and faulty behavior.


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