What are the elements of use case?
- The boundary, which defines the system of interest in relation to the world around it.
- The actors, usually individuals involved with the system defined according to their roles.
- The use cases, which are the specific roles played by the actors within and around the system.
Just so, what is the purpose of a list of use cases?
In software and systems engineering, a use case is a list of actions or event steps typically defining the interactions between a role (known in the Unified Modeling Language (UML) as an actor) and a system to achieve a goal. The actor can be a human or other external system.
Secondly, what does use case diagram represent? Use case diagrams are a way to capture the system's functionality and requirements in UML diagrams. It captures the dynamic behavior of a live system. A use case diagram consists of a use case and an actor. A use case represents a distinct functionality of a system, a component, a package, or a class.
Just so, what are the three main parts of a use case scenario?
The three main parts of a use case scenario are the use case identifiers and initiators; the steps performed; and the conditions, assumptions, and questions.
What are the different types of use cases?
There are three types of use cases: Essential, Concrete and Abstract. They are defined as follows: Essential Use Cases are expressed in an ideal form that remains relatively free of technology and implementation details; design decisions are deferred and abstracted, especially those related to the user interface.