Not (strictly) relying on SysML for MBSE: Language, tooling and development perspectives: The Arcadia/Capella rationale

Using the Arcadia/Capella solution as an example, this paper explores why standard UML/SysML languages are not necessarily the unique or best alternatives for implementation of a model-based systems engineering solution (MBSE). The Thales experience is used to elicit MBSE language and tooling requirements. This paper analyzes various implementation alternatives and justifies structuring choices made regarding Capella to efficiently support the Arcadia engineering method.