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The UML is a visual modeling language that can be
used to specify, visualize, construct, and document the
artifacts of a software system.
In following Testing Phases we can use UML
UNIT TESTING: we use Class & State Diagram
which covers correctness,error handling pre / post
conditions, invariants
FUNCTIONAL TESTING : we use interaction and class diagrams.
Which covers functional and API behavior,integration issues.
SYSTEM TESTING : use case,activity, and interaction
diagrams. Which covers workload,contention,synchronization &
recovery
REGRESSION TESTING: we use interaction and class diagrams.
Which covers Unexpected behavior from new /changed function.
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