The levels of Capacity Planning as they line up with the ERP business model (top to bottom) are:
RCCP (Rough Cut Capacity Planning) is a top management planning process.
Detailed Capacity Planning and CRP (Capacity Requirements Planning) are basically the same process.
Detailed Capacity Planning and CRP (Capacity Requirements Planning) are basically the same process.
Resource Planning is a top management planning activity owned by top management. It is typically prepared for them by others in the
organization but reviewed and approved by top management.