>> These slides were presented at SiriusCon Paris 2016, on November 15th by Andreas Jung (European Space Agency)
The European Space Agency, together with industry, has lead an analysis into the issues faced by spacecraft software developers now and in the future, considering several aspects as for example raising complexity of the software, shorter development life cycles, etc. The analysis resulted in the development of an On-board Software Reference Architecture (OSRA) founded on the principles of component-based software engineering (CBSE) and strong separation of concerns.
A dedicated Domain Specific Language for the component model was developed, called Space Component Model (SCM), to allow the precise definition with clear semantical meaning, in particular considering the domain specific elements like observability and commandability of spacecrafts via Telemetry and Telecommand. The SCM was implemented as a meta-model in ecore. The R&D activity that have developed the OSRA and the SCM have also prototyped a graphical editor to experiment and test the complete approach, from modelling down to code generation for the target.
The original prototype of the graphical editor was based on Eclipse and Obeo Designer, which allowed very quick and simple prototyping of a graphical editor. Following the R&D activities, it was clear that an improved version of the editor, in terms of usability, is needed. An improvement activity has been started with Obeo, using now the open source version of Obeo Designer, namely Sirius. The intention was also to push Obeo's technology further to evaluate it for applicability in a commercial tool.
This talk will give a brief overview of the challenges of spacecraft software development, the needs for a graphical editor, present the results of the improvement activity, show the benefits of the Eclipse and Sirius frameworks and provide an overall evaluation.