Mit Hilfe grafischer Modellierung wird das Zeitverhalten eines eingebetteten Systems, einem MIDI-Keyboard, vorgestellt. Ziel ist die Fehlersuche im zeitlichen Verhalten. Die vorgestellte Arbeit ist ein Kooperationsprojekt mit der HS Osnabrück.

The main goal of model-driven architecture is the generation of the full implementation of a system based on a precise description of a platform-independent model and a platform model. Such a description must accurately specify the static structure as well as the dynamic behavior of the system. We present a tool - called DEMOCLES - that realizes a hybrid approach to platform-independent modeling. It describes the static structure using a modified UML class diagram that separates query operations from modifier operations. The former are defined in the class diagram via OCL constraints, while the latter are defined using a MOF-based metamodel that contains modifier operations and properties as first-class entities and augments them with associations and OCL expressions. The tool is an Eclipse-plugin that offers overlay views of the structure and behavior with visual editing capabilities and permits execution of a platform-independent system.

This volume contains the Proceedings of the First Workshop on Software Composition (SC 2002). The Workshop has been held in Grenoble, France on April 7th, 2001, as a satellite event of ETAPS 2002. The aim of the SC Workshop is to collect different approaches and experiences in the domain of software composition. Component-based approaches to produce software from smaller units attract increasing attention of both research and industry. The rational behind this trend is in the promise of reuse. This is the idea to produce software by "plug & play" components which already exist or are produced by different external vendors. Components and software composition are considered to be a new way to overcome the remaining problems (e.g. reusability, deal with complexity) still not solved by the object-oriented paradigm. In this context, the SC workshop collects different approaches and experiences to explore and overcome the gap between promise and reality. The goal is to demystify these new approaches based on components and instead elaborate the real advantages, problems and challenges.