Hi All,

I need clarification on following concepts:

1) In which process we do formal acceptance of product or deliverable? Validate scope or Close phase/project?

2) n(n-1)/2 formula, is there a thumb rule to clarify how many persons/ stake holders we need to consider during calculation, is always PM needs to be added? under what condition we need to add PM and under what condition we don't need to add?

3) What is difference between configuration management and change management? which one is used where? any examples