Hello! I'm trying to understand what is the process that actually update the cost baseline after the change request is approved. According to PMBOK, it happens in the integrated change process (section 4.5.3.3), in the control scope process (section 5.6.3.3) and also in the monitor and control project work (section 4.4.3.3).

Shouldn't it be done in only one process? I'm lost on this one.

Thank you in advance for any help,
Federico