Abstract
This paper presents a modeling approach for the development of software for electronic control units in the automotive domain. The approach supports the development of two related architecture models in the overall development process: the logical architecture provides a graphical, quite abstract representation of a typically large set of automotive functions. On this abstraction level no design decisions are taken. The technical architecture provides a software and a hardware representation in separated views: the software architecture describes the software realization of functions as software components, whereas the hardware architecture models hardware ntities, on which the software components are deployed. Logical as well as technical architectures only model structural information, but no behavioural information. A tight integration of both architecture levels—on the conceptual and on the tool level—with related development phases such as requirements engineering, behaviour modeling, code generation as well as version and configuration management resulting in a seamless overall development process is presented. This architecture modeling approach has been developed within a safety-relevant project at BMW Group. Positive as well as negative experiences with the application of this approach are described.
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