Hello,

I am new to Business Analysis. I have a question Business rules are functional req or non-functional req further BA is a part of IT team or Business team...

thanks

We classify business rules as non functional requirements. But they are always associated with functional requirements. Most of the time they are a modification of a functional requirement or specify specific conditions that a requirement may be activated you can tell it is a business rule if it has "if" or "when". Each requirement typically has multiple business rules.

For example, The system shall enable a user's credit application to automatically be approved or declined based on credit score

The business rules might be for credit scores below 500 automatically reject, for credit scores between 500-600 push to the manual queue, for credit scores 600+ automatically approve.

There could be other requirements detailing how the credit cliffs are user definable etc as well.

We discuss this quite a bit internally and may have some blog posts on it at http://requirements.seilevel.com/blog

Here is an old post on our messageboard (which we have closed down) which discusses business rules

http://requirements.seilevel.com/messageboard/showthread.php?t=3514