Helvetica, sans-serif">Check all the functional aspects of the system like its performance, its usability, capacity, security, reliability etc. in addition to all non-functional aspects.
Identify the various steps for testing activities along with the data, which are required to perform the above steps. Such planning needs to be done during early stages of the SDLC.
Feed the inputs as per the planned steps and draw detailed comparison among the results obtained versus the expected results.
Organize an environment simulating or duplicating all the characteristics of the actual environment for the testing. The characteristics can include software configuration, hardware, data and necessary interfaces etc.
Do the analysis of the data followed by reporting the results in sufficient details.
Record all visible failures and ensure that such failures must be repaired in future.
Perform regression testing after every change & ensure that the application continues to function correctly.
Practice of structured software inspections; which are nothing but a combination of validation and verification using statistical process control would certainly deliver great advantages to the software delivery efforts.