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Dynamic object roles are widely considered to be helpful to conceptual modeling of application. This paper presents an approach to role implementation based on mediator pattern, which is used to object behavior extension in class-based language. We present a prototypical implementation of the approach by extending the Java language, called Rava. In the approach, role management (generation of role...
In this paper we argue for UML-based metamodeling and pattern-based graph transformation techniques in computer-based systems development through an illustrative example from the domain of embedded systems. We present a tool that uses advanced graph-rewriting techniques to generate a schedule that satisfies hard real-time constraints for multi-modal systems. The input is a time-triggered system specification...
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