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Saturday, March 15, 2014

Top-Down and Bottom-up Approach in Integration Testing

While doing Integration testing we are following Top-down and Bottom-up approach.

Also check out my previous posts on:

- QuickTest Testing Process

- Cost Of Defect Repair in Testing

- How to do Web Application Testing?

Top-Down Approach:-
Integration of main module with some of the stub modules is called as Top-down approach.In this case we are using temporary programs instead of under constructive Stub modules.By doing this we can stop the control to the module which is under construction.

Bottom-Up Approach:-
Integration of sub modules without main module is called as Bottom-Up approach.In this case instead of main module we are using a temporary program called as driver.Here we are using driver to send the control or to connect to the next module.