INTRODUCTION TO UML

UML is a languageused for object-oriented analysis and design.

UML stands for unified modelling language

UML includes a set of graphical notation techniques to create visual models of software systems.

Three developers of UML are Grady Booch, Ivar Jacobson and James Rumbaugh.

UML is a language for visualizing, specifying, constructing, documenting.

UML is not a development method. It is designed to be compatible with the object-oriented software development methods.

VIEWS IN UML

This view describes functional requirements of the system.

Use case diagrams give static functional view for functions and static relationships.

Activity diagrams give dynamic functional view.

The class and object diagramsgive the structural view of system.

Interaction diagrams- collaboration diagrams and sequence diagrams describe sequences of interactions between objects.

State transition diagrams show state-based behavior of objects.

This view describes logical and physical structure.

Component diagrams and deployment diagrams are used in this view.