Stepwise Refinement in Executable-UML for Embedded System Design: A Preliminary Study

The fast growth in complexity coupled with requests for shorter development periods for embedded systems are bringing demands towards a more effective, i.e. higher-abstract, design process for hardware/software integrated design. In software engineering area, Model Driven Architecture (MDA) and Executable UML (xUML) has been accepted to bring further improvement in software design. This paper constructs MDA and xUML stepwise transformations from an abstract specification model to a more concrete implementation model using the refactoring technique for hardware/software integrated design. This approach provides clear and structured models which enables quick exploration and synthesis, and early stage verification.