Lifecycle Modeling Language: Difference between revisions

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'''The Lifecycle Modeling Language (LML)''' is an open-standard modeling language designed for [[systems engineering]]. It supports the full [[System lifecycle|lifecycle]]: conceptual, utilization, support and retirement stages. Along with the integration of all lifecycle disciplines including, [[program management]], systems and design [[engineering]], [[verification and validation]], deployment and maintenance into one framework.<ref name="specification">{{cite web|author=LML Steering Committee|title=LML Specification|url=httphttps://www.lifecyclemodeling.org/spec/LML_Specification_1_0.pdfspecification|access-date=20132023-1003-1701}}</ref>

LML was originally designed by the LML steering committee. The specification was published October 17, 2013.

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LML communicates cost, schedule and performance to all stakeholders in the system lifecycle.

LML combines the logical constructs with an ontology to capture information. SysML is mainly constructs and has a limited ontology, while DoDAF MetaModel 2.0 (DM2) only has an ontology. Instead LML simplifies both the constructs and ontology to make them more complete, but still easier to use. There are only 12 primary entity classes. Almost all of the classes relate to each other and themselves with consistent words, i.e., Asset performs Action. Action performed by Asset.<ref name="slideshare.net">{{cite conference |author=Steven Dam |author2=Warren Vaneman |url=https://www.slideshare.net/ElizabethSteiner/lifecycle-modeling-language-tutorial-by-dr-dam-and-dr-vaneman |title=Lifecycle Modeling Language Tutorial |book-title=SEDC 2014 |date=2014-04-06}}</ref>

SysML uses object oriented design, because it was designed to relate [[systems thinking]] to software development. No other discipline in the lifecycle uses object oriented design and analysis extensively. LML captures the entire lifecycle from cradle to grave.<ref name="specification"/>

Systems Engineers have identified complexity as a major issue.<ref name="slideshare.net"/> LML is a new approach to analyzing, planning, specifying, designing, building and maintaining modern systems.