Why We Need Testers?

WHY WE NEED TESTERS?



There are number of reasons for which we need dedicated testers and not developers:


1. The perception between a developer and a tester is different. Tester has an attitude to break and will cover both positive flows and negative flows.

2. Tester not only have a very good understanding of various flows and modules in an application, he also applies his skill and expertise to find bugs.

3. A tester not only concentrates on functionality but also on other issues like usability, GUI, Database

We always need a Separate Testing team to Ensure the Quality of the Product. Reason Being:

A Developer will never tend to find a Bug in his code, where as Tester's main motive is to find as many bug as possible.

A developer can overlook minor issues where as a Tester will not overlook even the minor things, ensuring that cutomer is fully satisfied.

1.we need testers because developers are not good testers.

2.Misunderstanding will not be detected ,because the checker will assume that what the other individual heard from him was incorrect.

3.Improper use of the development process may not be detected because the individual may not understand the process.

4.The individual may be blinded into accepting erroneous system specifications and coding because he falls into the same trap during testing that led to the introduction of the defect in the first place.

5. Information services people are optimistic in their ability to do defect free work and thus sometimes underestimate the need for extensive ttesting.

6.Without formal division between development and test, an individual may be tempted to improve the system structure and documentation, rather than allocate that time and effort to the test.
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