Why does testing fail?

[jainbrijesh]

I think to become good tester, first you should be a good developer.

Why you think so?

[nsridhara]

Why you think so?

It's simple , since you know the aspect of development you can put yourself in the developer shoe and think accordingly and can catch bugs much easier.

Any comments

[kunal_sax]

It's simple , since you know the aspect of development you can put yourself in the developer shoe and think accordingly and can catch bugs much easier.

Any comments

I dont agree with your comment ..
Thinking of developer and Good tester is different..
Developer always tries to make application work .
Tester always tries to BREAK application. .
(Tester can think of scenarios which developer cant. )
Moreover knowledge of product is very important , developer knows only his module but tester should know all the modules and their exact behaviour.