Unified Modeling Language(UML)
Use Case
A use case is rendered as an ellipse in a use case diagram. A use case is always labeled with its name
Use Case (Cont’d)
An actor is rendered as a stick figure in a use case diagram. Each actor participates in one or more use cases.
Use Case (Cont’d)
Actors can participate in a generalization relation with other actors.
Classes
A class is a description of a set of
objects that share the same attributes,
operations, relationships, and semantics.
Graphically, a class is rendered as a
rectangle, usually including its name,
attributes, and operations in separate,
designated compartments.