This paper describes the first results from the AutoMoDe project (Automotive Model-based Development), where an integrated methodology for model-based development of automotive control software is being developed. The results presented include a number of problem-oriented graphical notations, based on a formally defined operational model, which are associated with system views for various degrees of abstraction. It is shown how the approach can be used for partitioning comprehensive system designs for subsequent implementation-related tasks. Recent experiences from a case study of an engine management system, specific issues related to reengineering, and the current status of CASE-tool support is also presented.
This paper describes first results from the AutoMoDe (Automotive Model-Based Development) project. The overall goal of the project is to develop an integrated methodology for model-based development of automotive control software, based on problem-specific design notations with an explicit formal foundation. Based on the existing AutoFOCUS framework [1], a tool prototype is being developed in order to illustrate and validate the key elements of our approach.
Zusammenfassung Zur Beherrschung der komplexen vernetzten und verteilten Funktionen von Automotive-Software ist eine Beschreibung des zu erstellenden Systems auf verschiedenen Abstraktionsebenen und schrittweise Übergänge zwischen diesen Ebenen notwendig. Neben der Definition geeigneter Ebenen werden zur Unterstützung echtzeitkritischer Systemanteile ein einheitliches Berechnungsmodell, ebenenspezifische Beschreibungstechniken, sowie methodische Regeln für diese Abstraktionsebenen eingeführt und in den Werkzeugprototypen AutoFOCUS integriert.Schlüsselwörter Automotive Software Engineering · Eingebette Software · Synchrone Sprachen · AutoFocus Abstract For tackling the development of complex networked and distributed functionalities of Automotive software, a description of the system on different levels of abstraction, accompanied by stepwise transitions between those levels, is essential. In this article, a homogeneous model of computation, as well as notations and methodological rules corresponding to abstraction levels, are introduced for describing real-time software systems. The techniques described have been integrated into the tool prototype AutoFOCUS.
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