Actor (UML)

UML use case diagram with two actors and several use cases.

An actor in the Unified Modeling Language (UML) "specifies a role played by a user or any other system that interacts with the subject."

"An Actor models a type of role played by an entity that interacts with the subject (e.g., by exchanging signals and data), but which is external to the subject."

单词	User role
释义	User role 英语百科 Actor (UML) An actor in the Unified Modeling Language (UML) "specifies a role played by a user or any other system that interacts with the subject." "An Actor models a type of role played by an entity that interacts with the subject (e.g., by exchanging signals and data), but which is external to the subject."
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User role

Actor (UML)