What is actor in use case

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. Actor names should follow the capitalization and punctuation guidelines for classes.

The names of abstract actors should be shown in italics. Primary Actor: The primary actor of a use case is the stakeholder that. This chapter explains what actors and use cases are and what they are not. It also provides guidelines for the naming of the actors and use cases and theirĀ .

Actor classes are used to model and represent roles for users of a system, including human users and other systems. A use case diagram is a diagram that shows the relationships among actors. Use Cases; Actors; Relationships; System Boundary Boxes.

A full description of what we do, and how to contact us, can be found at Scott Ambler + Associates. To define who and what will interact with the system. Divide the model into packages with actors and use cases.

As stated in another answer, an actor is a system or role interacting with the system. That way, you gain a full understanding of who can do what. The UML Use Case Diagramming Guidelines here.

What you have to really think is who is going to benefit from the action and put in theĀ . Define each candidate actor by naming it and writing a brief description. The best way to find use cases is to consider what each actor requires of the system.