Standard UML icon for actor is "stick man" icon with the name of the actor above or below the icon. Actor names should follow the capitalization and punctuation guidelines for classes. The names of abstract actors should be shown in italics. All actors must have names. Custom icon for Web Client actor.

2025年1月3日 · A Use Case Diagram is a type of Unified Modeling Language (UML) diagram that represents the interaction between actors (users or external systems) and a system under consideration to accomplish specific goals.

An actor is behaviored classifier which specifies a role played by an external entity that interacts with the subject (e.g., by exchanging signals and data), a human user of the designed system, some other system or hardware using services of the subject.

Use cases are usually referred to as system functionalities that a system should perform in collaboration with one or more external users of the system (actors). Each use case should provide some observable and valuable results to the actors or other stakeholders of the system.

UML use case diagram with two actors (Parent-Teacher and Child) and 5 use cases. An actor[1] in the Unified Modeling Language (UML) "specifies a role played by a user or any other system that interacts with the subject." [1]

Pre-drawn UML use case diagram symbols represent actor, use case, package, object, interface, constraint and note, etc. These symbols help create accurate diagrams and documentation.

In the Unified Modeling Language (UML), a use case diagram can summarize the details of your system's users (also known as actors) and their interactions with the system. To build one, you'll use a set of specialized symbols and connectors. An effective use case diagram can help your team discuss and represent:

Using the Use Case Diagram model, you show the relationship among actors and use cases within a system. The Use Case diagram we will be creating tracks various functions and those who interact with the functions within a banking system. Use Case symbols define instances. When representing an instance, you: