Icon class icon_class fas fa-quote-left icon_class_computed fas fa-quote-left Related content Webel: MBSE: SysMLv1: Prefer a custom «actor» extension of a Block (such as the non-normative External) over UML-style Actor for use as parts in IBDs and on allocation swimlanes. You can also have a Trace from a block-based «actor» to a UML-style Actor. Source Unified Modeling Language 2.5.1 Copyright information About Object Management Group copyright in text extracts quoted from OMG specifications for educational purposes Snippet kind INFO UML keywords Actor UseCase::subject UseCase Previous snippet Full quote An Actor specifies a role played by a user or any other system that interacts with the subject. Next snippet Related snippets Related snippets (backlinks) Actors represent classifier roles that are external to the system that may correspond to users, systems, and or other environmental entities. The use case diagram describes the usage of a system (subject) by its actors (environment) to achieve a goal, that is realized by the subject providing a set of services to selected actors. Visit also Visit also (backlinks) Flags
