Test Director Open Test Architecture is excellent if you want to try your hands on VAB and bend Test Director as per your requirement.
I felt it handy when I was supposed to update huge lot of test cases which for me was easy if I download all the test cases in excel. With the help of OTA I downloaded the test cases in excel and updated them as required and then again uploaded them using TestDirector Excel Add-in.
If you want to have a look you can find the OTA guideĀ book here Alternatively you can get the book if you have TD/QC installed, just follow below steps.
1.) start you QC
2.) Link “Mercury Quality Center”
3.) Link “Help” -> “Books online”

[...] this and I kept a copy on mail (I was not blogging at that time
) I was not aware of the OTA at that time so was very curious to look how that add-in was written. Hope this is useful in case [...]
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