Fact Sheet: Systems Modeling Language (SysML)

General

Short description/ Transmitted information	Graphical, descriptive, semi-formal, modelling language SysML is extension of UML2 Suitable for complex systems
Normative documents	SysML 1.5 (omg.org) (2.0 under development)
Version / Release state	1.5
Release date	May 2017
Application scope	Describe system-level use cases, actors and requirements Describe system-level structure and behavior
Goals	general-purpose graphical modeling language for specifying, analyzing, designing, and verifying complex systems including hardware, software, information, personnel, procedures, and facilities traceability across multiple aspects/views („from requirement to test“) cross-disciplinary communication and collaboration lifecycle-oriented coverage
Promoting bodies	OMG INCOSE including GfSE prostep ivip Association
Type	OMG Standard
IT Standard classification	Modeling Standard
Data format	Graphical modelling language
Additional available resources	Modeling methodologies (Harmony-SE, OOSEM, SysMOD, FAS-Method…) Many web information ressources, e.g. OMG SysML Knowledge Base SE Body of Knowledge SysML Partners: Creators of the SysML... Use Cases, Guidelines, Best Practice Examples Literature (Books, Scientific Papers) Best Practices OMG SysML Home \| OMG Systems Modeling Language What is SysML? \| OMG SysML SysML V2 \| OMG SysML
Relevant prostep ivip project groups	SysML Workflow Forum (SysML-WF) (prostep.org)

Positioning of SysML in V-Model

Details

What is the contribution of especially this format/ standard to Systems Engineering and/ or Collaboration:

Simplify the model creation with SysML as a basis for visualization, complexity management and better handling of product views due to the product life cycle.
One industry-wide SysML profile to address many areas of common interest such as Automotive Regulatory Requirement & Verifications, Automotive Structures, Automotive Feature definitions, Risk Management (-FMEA, Functional Safety, Fault Tree analysis), integrated Dynamical Analysis and Optimization, ALM and PLM Integration
The Automotive Domain is witnessing rising SysML and MBSE adoption to cope with the pace of change-especially with Mechatronics seemingly entering every feature of the automobile.
An Automotive SysML profile accepted by the industry is not known to exist
If collaboration is not enabled, practitioners within the domain will create adhoc profile extensions and fragment the space.
Competing profiles that conflict within the same domain are a failure mode that will impede accelerated adoption of SE in general.
SE practitioners in a particular domain do become more efficient by extending the base SysML standard to meet their needs

Relevance and Benefit for MBSE

The Systems Modeling Language (SysML) is a general-purpose graphical modeling language for specifying, analyzing, designing, and verifying complex systems that may include hardware, software, information, personnel, procedures, and facilities. In particular, the language provides graphical representations with a semantic foundation for modeling system requirements, behavior, structure, and parametrics, which is used to integrate with other engineering analysis models. It represents a subset of UML with extensions needed to satisfy the requirements of the UML.

SysML has emerged as the de facto standard system architecture modeling language for Model-Based Systems Engineering (MBSE) applications.

Risks and Impediments

What happens if we do nothing

Software vendor solutions that will lock Auto OEMs into proprietary products not based on standards.
Major and lower tier suppliers unable to support diverging OEM proprietary standards without adding significant time and cost which eventually gets shared with the OEMs.
Supplier requirements not consideredà no collaboration possible