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Using Language Workbenches and Domain-Specific Languages for Safety-critical Software Development
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2019
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Gesellschaft für Informatik e.V.
Zusammenfassung
In a 2018 article in the journal on Software & Systems Modeling we discussed the use of DSLs and language workbenches in the context of safety-critical software development. Language workbenches support the efficient creation, integration, and use of domain-specific languages. Typically, they execute models by code generation to programming language code. This can lead to increased productivity and higher quality. However, in safety-/mission-critical environments, generated code may not be considered trustworthy, because of the lack of trust in the generation mechanisms. This makes it harder to justify the use of language workbenches in such an environment. In the SOSYM paper, we demonstrate an approach to use such tools in critical environments. We argue that models created with domain-specific languages are easier to validate and that the additional risk resulting from the transformation to code can be mitigated by a suitably designed transformation and verification architecture. We validate the approach with an industrial case study from the healthcare domain. We also discuss the degree to which the approach is appropriate for critical software in space, automotive, and robotics systems.