a) User Acceptance Test Cases 

b) Integration Level Test Cases 

c) Unit Level Test Cases 

d) Program specifications 

User acceptance testing is Formal testing with respect to user needs, requirements, and business processes conducted to determine whether or not a system satisfies the acceptance criteria and to enable the user, customers or other authorized entity to determine whether or not to accept the system.

A test case provides the description of inputs and their expected outputs to observe whether the software or a part of the software is working correctly.

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