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1 As it not possible makes it software application is defect free but testing will be necessary. 2  Most important thing of testing is the development environment is different than the Testing environment and the testing done on testing environment is similar to the Production environment. Most important thing of testing is the development environment is different than the Testing environment and the testing done on testing environment is similar to the Production environment.
The software testing is as important as the development. You will not able to maintain the product quality untill unless you have applied proper testing and quality measures.AR process. Software testing helps in maintaing the quality of the product and help to minimise the bugs. jesh Oct 22nd, 2012 testing is necessary, because software is likely to have faults, to learn about the reliability of the software before its being used by the customers.