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Enhancing Graphical Model-Based System Design : An Avionics Case Study

Graphical model-based system design is very appealing. However, there exist many different formalisms, with different semantics---as far as they do have well-defined semantics---and differing capabilities of the accompanying tools. In this paper, we present a case study from the avionics domain and report on the experiences in using different modeling languages and tools. The focus here is on the pragmatics of modeling, i. e., the practical process of building and inspecting graphical models. The underlying application is a high-lift ï¬ap system, which is highly safety-critical and served as a demonstrator within the Dependable Embedded Components and Systems (DECOS) project that explored the design of distributed dependable systems build on time-triggered architectures. Specifically, we compare a realization in the Safety Critical Application Development Environment (SCADE), a commercial tool from Esterel-Technologies, with a design in the Kiel Integrated Environment for Layout (KIEL), a research tool that allows to explore novel model handling paradigms. Hence we compare traditional graphical drag-and-drop WYSIWYG modeling with alternative, productivity enhancing approaches. We conclude with a brief outlook on future extensions which will tightly integrate with existing tools based on the Eclipse platform.

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Use and reproduction:No Creative Commons license - The provisions of the German Copyright Act (UrhG) apply.Please note that individual components of the publication may be subject to other licensing or copyright conditions.