Principles of Object-Oriented Software Development Unified Modeling Language

Introduction Class diagrams Use cases Interaction diagrams Package and deployment diagrams State and activity diagrams Discussion

The Unified Modeling Language (UML) resulted from a joint effort of leading experts in object-oriented analysis and design, Grady Booch, Jim Rumbaugh and Ivar Jacobson, also known as the three amigos, all currently employees of Rational.

Unified Modeling Language class diagrams -- conceptual structure use cases -- functional requirements interaction diagrams -- operational characteristics package and deployment diagrams -- implementation state and activity diagrams -- dynamic behavior UML See and UML Distilled, [Fowler97].

Class diagrams

Use cases

Interaction diagrams

Package and component diagrams

State and activity diagrams

event(arguments)[conditions]/action

Discussion

The UML toolbox is very rich. It allows you to model every conceivable aspect of the system. Nevertheless, to my mind, graphical models are not always appropriate. But, on the other hand, most people like them and they often make a good impression, suggesting clarity...