Answer / sudhirmk

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.

Also for deployment use case and deployment diagrams are used.

Please correct if I am wrong.
Thx.
Sudhir kulkarni

Answer / kannan

UML is Unified Modeling Language. It is a graphical language
for visualizing specifying constructing and documenting the
artifacts of the system. It allows you to create a blue
print of all the aspects of the system, before actually
physically implementing the system.

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