Unified Modeling Language
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The Unified Modeling Language (UML} is a standard for diagramming program design and development.
The main types of diagrams that belong to UML are:
class diagrams --------- to show the relationships between objects and classes In Detail + Examples sequence diagrams ------ to show time dependency of information flow Example collaboration diagrams - to show time dependency of information flow between objects use case diagrams ------ to show a high level example of system functionality as it relates to information flow between a system and its users state diagrams --------- to show how messages change the state of objects over time Example component diagrams ----- to show how objects are contained deployment diagrams ---- to show time dependencies in deployment entity relationship diagrams -
James Rumbaugh, Ivar Jacobson and Grady Booch are together considered the main contributors to UML historically. Together they formed Rational Software.