Towards UML-based formal specifications of component-based real-time software

Authors:
Vieri Del Bianco;Luigi Lavazza;Marco Mauri;Giuseppe Occorso
Affiliations:
Politecnico di Milano, Dipartimento di Elettronica e Informazione, Milano, Italy and CEFRIEL, Milano, Italy;Politecnico di Milano, Dipartimento di Elettronica e Informazione, Milano, Italy and CEFRIEL, Milano, Italy;CEFRIEL, Milano, Italy;Technology REPLY, Milano, Italy
Venue:
FASE'03 Proceedings of the 6th international conference on Fundamental approaches to software engineering
Year:
2003

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Abstract

UML-RT is achieving increasing popularity as a modeling language for real-time applications. Unfortunately UML-RT is not formally well defined and it is not well suited for supporting the specification stage: e.g., it does not provide native constructs to represent time and non-determinism. UML+ is an extension of UML that is formally well defined and suitable for expressing the specifications of real-time systems (e.g., the properties of a UML+ model can be formally verified). However, UML+ does not support design and development. This article addresses the translation of UML+ into UML-RT, thus posing the basis for a development framework where UML+ and UML-RT are used together, in order to remove each other's limitations. Specifications are written using UML+, they are verified by means of formal methods, and are then converted in an equivalent UML-RT model that becomes the starting point for the implementation.