UML Class Diagram

UML class diagrams show the classes of the system, their inter-relationships, and the operations and attributes of the classes. Class diagrams are typically used, although not all at once, to:
* Explore domain concepts in the form of a domain model
* Analyze requirements in the form of a conceptual/analysis model
* Depict the detailed design of object-oriented or object-based software

A class model is comprised of one or more class diagrams and the supporting specifications that describe model elements including classes, relationships between classes, and interfaces. There are guidelines for:
General issues
Classes
Interfaces
Relationships
Inheritance
Aggregation and Composition

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