How do the test cases differ for Functional,Integration,System and User Accepta

How do the test cases differ for Functional,Integration,System
and User Acceptance Testing???

Question Posted / venkat

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How do the test cases differ for Functional,Integration,System and User Acceptance Testing???..

Answer / nestor

Functional Test Cases: Here the test Cases are designed in
such a way that the functionality present in
the 'Functional Design Document' are tested.

Integration Test Cases: The test cases are designed in such
a way that, the link between the modules and the flow of
data from one module to other modules are checked.

System Testing: Functional + Integration

User Acceptance Testing: Designing of the test cases based
on the client (or end users) understanding.

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How do the test cases differ for Functional,Integration,System and User Acceptance Testing???..

Answer / sathish

Functional Testing:
Testing the application whether it meets the
functional requirements specified in the Software
Requirement Specification documents.
It includes object behavioural testing,Database
testing,calculation coverage,navigation testing,error-
handling testing,Input domain coverage testing,Static text
testing & basic functionality of the page
Integration Testing:
Testing one or more modules together with the
intent of finding data interface defects.
System Testing:
System testing is conducted on overall system to
validate whether the system meets the functional and non-
funtional requirements specified in the Software
Requirements Specification.
User Acceptance Testing:
This testing will come next to the system testing.
Testing the application whether it meets customer
requirements and expectations. Customer site people will be
doing this testing or they will be closely involved in this
testing.

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