Why do we need Testing?

We need testing for so many reasons. And the most common reasons are listed below.

• To find defects.
• To ensure that application meets customer expectations / requirements.
• To reduce cost of quality by delivering defect free product on time, within the budget.
• To achieve customer satisfaction.
• To continuously improve testing process in the SDLC.
• To reduce risk of software failure.
• To determine the state of software.
• To deliver a quality and bug free application to customer.
• To retain the company name and fame.
• If there is no testing, then there is no quality products/projects/applications.

Few other reasons:

• Developer thinks in the point of code, structures, loops, statements, code integrations and so on.
• There should be someone else who could think in the point of functional behavior.
• There should be someone who could think in the view of customers / end users.
• And thus, tester comes into picture and testing is needed for sure.