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The '''Systems Modeling Language''' ('''SysML''')<ref>''Flexible Views for View-based Model-driven Development'' By Burger, Erik. KIT Scientific Publishing, Nov 14, 2014. Pg. 250.</ref> is a [[general-purpose modeling]] language for [[systems engineering]] applications. It supports the specification, [[analysis]], [[design]], [[verification and validation]] of a broad range of systems and [[System of systems|systems-of-systems]].
SysML was originally developed by an [[open source]] specification project, and includes an open source license for distribution and use.<ref name="faq">{{cite web|author=SysML Forum|title=SysML FAQ|url=http://www.sysmlforum.com/FAQ.htm|accessdate=2009-08-26}}</ref> SysML is defined as an extension of a subset of the [[Unified Modeling Language]] (UML) using [[profile (UML)|UML's profile mechanism]]. The language's extensions were designed to support systems engineering activities.
== Overview ==
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After a series of competing SysML specification proposals, a SysML Merge Team was proposed to the OMG in April 2006.<ref>[http://www.omg.org/docs/ad/06-03-01.pdf OMG document ad/06-03-01]</ref> This proposal was voted upon and adopted by the OMG in July 2006 as OMG SysML, to differentiate it from the original open source specification from which it was derived. Because OMG SysML is derived from open source SysML, it also includes an open source license for distribution and use.
The OMG SysML v. 1.0 specification was issued by the OMG as an Available Specification in September 2007.<ref>{{cite web|url=http://www.omg.org/spec/SysML/1.0/PDF|title=SysML 1.0|work=omg.org|accessdate=2014-12-04}}</ref> The current version of OMG SysML is v1.5, which was issued by the OMG in May 2017.<ref>{{cite web|url = http://www.omg.org/spec/SysML/1.5/|title = SysML|work = omg.org|accessdate = 2017-07-03}}</ref> In addition, SysML was published by the [[International Organization for Standardization]] (ISO) in 2017 as a full [[International standard|International Standard]] (IS), ISO/IEC 19514:2017 (Information technology -- Object management group systems modeling language).<ref>{{Cite web|url=https://www.iso.org/standard/65231.html|title=ISO/IEC 19514:2017 - Information technology -- Object management group systems modeling language (OMG SysML)|website=www.iso.org|language=en|access-date=2017-12-29}}</ref>
The OMG has been working on the next generation of SysML and issued a Request for Proposals (RFP) for version 2 on December 8, 2017, following its open standardization process.<ref name=":0">{{Cite web|url=http://www.omgwiki.org/OMGSysML/doku.php?id=sysml-roadmap:sysml_v2_requirements_review_page|title=sysml-roadmap:sysml_v2_requirements_review_page [OMG SysML Portal]|website=www.omgwiki.org|language=en|access-date=2017-12-29}}</ref><ref>{{Cite web|url=http://www.omg.org/gettingstarted/processintro.htm|title=OMG Process Introduction {{!}} Object Management Group|last=http://themeforest.net/user/dan_fisher|website=www.omg.org|language=en|access-date=2017-12-29}}</ref> The resulting specification, which will incorporate language enhancements from experience applying the language, will include a UML profile, a [[Metamodeling|metamodel]], and a mapping between the profile and metamodel.<ref name=":0" /> A second RFP for a SysML v2 [[Application programming interface|Application Programming Interface]] (API) and Services is also being developed. Its aim is to enhance the interoperability of [[model-based systems engineering]] tools. The OMG plans to issue this second RFP in June 2018.<ref name=":0" />
== Diagrams ==
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