Need some information on Quality Management in ABAP

Hello Friends,

I had worked on SD & MM till date. But as i am moving into a different Project i would be working on QA Module wing from now on-wards.

Kindly provide some information about the flow of Quality Management , TCODES and Tables and also some important things to remember.

As an ABAP'er also provide me the information if there is any difference in the programming for QA module.

Thanks & Regards,

Rajesh Kumar R