What Does a UML Class Diagram Show?

UML Class Diagram is a description of a group of objects all with similar roles in the system, which consists of:

• Structural features (attributes) define what objects of the class “know”
• Represent the state of an object of the class
• Are descriptions of the structural or static features of a class
• Behavioral features (operations) define what objects of the class “can do”
• Define the way in which objects may interact
• Operations are descriptions of behavioral or dynamic features of a class

In software engineering, a class diagram in the Unified Modeling Language (UML) is a type of static structure diagram that describes the structure of a system by showing the system’s classes, their attributes, operations (or methods), and the relationships among objects.

Useful UML resources

• OMG UML Specification
• Award-Winning UML modeling software
• UML tutorials

Originally published at uml-questions.blogspot.com.