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UML diagram
subject			fact

UML diagram	describes aspects of the architectural model
	has part constraint
	has part note
	is a subtopic of 5.6 - More Advanced Features of Class Diagrams
	is a kind of diagram
	see also Unified Modelling Language
	shows classes, their attributes and operations as well as the various types of relationships that exist among the classes
diagram	has advantages it conveys or summarizes complex concepts or mechanisms more easily than other techniques
	has problems can be hard for users to interact with or interpret not usable by blind people it can be expensive to program diagram drawing software
	should have a label if its meaning is not obvious, using a caption or pop-up label that appears when the user moves the mouse over it

Kinds of UML diagram :

• activity diagram (11 facts) - A UML diagram showing sequences of activities, typically for multiple threads
• class diagram (2 kinds, 11 facts) - A UML diagram that primarily indicates classes and the associations between those classes
• component diagram (4 facts) - A UML diagram showing components and their relationships
• deployment diagram (6 facts) - A UML diagram showing hardware nodes, how they are interconnected, and what components will exist on them at run time
• instance diagram (10 facts) - A UML diagram that shows objects and the links between them
• interaction diagram (2 kinds, 14 facts) - A sequence diagram or collaboration diagram used to model the dynamic aspects of a software system
• package diagram (3 facts) - A type of UML class diagram showing packages and their relationships
• state diagram (14 facts) - A UML diagram showing states and transitions, used to describe the externally visible behaviour of a system or of an individual object
• subsystem diagram (3 facts) - A UML diagram showing details of a subsystem, including aspects of its operations, its specification and its realization
• use case diagram (7 facts) - A UML diagram showing actors, use cases and their relationships