100% bugfree testing is not at all possible. If we say 100% testing is completed, then that will be the end to any software. Then why we are getting so many projects still. Because we didn’t develop a bugfree project. We can’t develop a bugfree project.

Take an example, Why Win Runner, oracle has so many versions? Yahoo Messenger, Rediffbol has versions? so many examples are there.

I’ll give a real time example. HSBC is client to XXXXXXX company. Everyday there are problems in customer side. Everyday Developers and Test Engg.s clarifying and fixing the bugs in the real usage which is also called support or maintenance. Finally what i mean to say is, No project is 100% bugfree. We can do 100% testing, but we can’t assure that we have developed a 100% bugfree project or Product.

We can say testing is completed when dead lines are met, when project budget is over, when all High and Medium bugs are fixed.