SysML is a modeling language used for systems analysis and design. While some domain‐specific analyses (e.g., finite element analysis) can only be specified in SysML when combined with other vocabulary, many common analyses can be modeled purely in SysML using its parametric and behavioral semantics. In this paper, we focus on one kind of analysis, which is requirements verification, and propose a new Executable System Engineering Method (ESEM) that automates it using executable SysML modeling patterns that involve structural, behavioral and parametric diagrams. The resulting analysis model becomes executable using a general purpose SysML execution engine. We present our method and demonstrate it on a running example derived from an industrial case study where we have verified the power requirements of a telescope system. It involves dynamic power roll‐ups in different operational scenarios and shows the automation capabilities of this method.
Abstract-State Analysis is a methodology developed over the last decade for architecting, designing and documenting complex control systems. Although it was originally conceived for designing robotic spacecraft, recent applications include the design of control systems for large ground-based telescopes. The European Southern Observatory (ESO) began a project to design the European Extremely Large Telescope (E-ELT), which will require coordinated control of over a thousand articulated mirror segments. The designers are using State Analysis as a methodology and the Systems Modeling Language (SysML) as a modeling and documentation language in this task. To effectively apply the State Analysis methodology in this context it became necessary to provide ontological definitions of the concepts and relations in State Analysis and greater flexibility through a mapping of State Analysis into a practical extension of SysML. The ontology provides the formal basis for verifying compliance with State Analysis semantics including architectural constraints. The SysML extension provides the practical basis for applying the State Analysis methodology with SysML tools. This paper will discuss the method used to develop these formalisms (the ontology), the formalisms themselves, the mapping to SysML and approach to using these formalisms to specify a control system and enforce architectural constraints in a SysML model.
Cookbook: a practical, recipe based collection of patterns, procedures, and best practices for executable systems engineering for the Thirty Meter Telescope,"
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