A class diagram provides a graphical representation of the structures and relationships of elements in an application.
For example, a class diagram can depict some or all of the components or elements in an application. You can use class diagrams to create your own context to examine, understand, collaborate, and design using a subset of the components or elements in an application.
Class diagrams use multiple variations of association relationships to indicate which classifiers must share data with other classifiers.
Parent topic: Class diagrams and diagram elements
Related concepts
Classes
Relationships
Attributes
Operations
Multiplicity
Visibility
Related tasks
Creating UML class diagrams
Creating class diagrams
Creating UML class diagrams of C/C++ elements