Why QTP automation tool ?

From the name itself you can understand, that it is 'Quick test'.

And also it is called as Record and play back tool.

For the first time, you record every thing and play it.

To know the advantage of QTP i am stating you an example below,

Let us say 100 test cases were given to you for testing the login page.

If you are going to do it manually, how long will it take...

depends on the testers capability..

let us assume 5 hrs to 8 hrs.. i.e a day.

The same thing if we automate with QTP, it is a very simple process..

Record the login page once..

Parametrize the user name and password with test case data and Run.

we can finish it up to max of 10 to 20 mins.

" The difference i stated above exclude Data preparation for test cases. "