Software Extension Programs:

A large number of software programmes are included in the MRP II suite. Some are further designed to help the scheduling process. Out of them, most important is Rough Cut Capacity Planning (RCCP), a preliminary attempt to match the order load to the capacity available, by calculating the load per resource.

Overloads are recognized and orders can be moved to achieve a balance. This has been explained as knocking the mountains into the valleys.

Other additions are designed to extend the application of the MRP II package. For instance it may include an option for entering and invoicing sales orders. Another common extension is into stock recording and a third into cost accounting. A full MRP II implementation may therefore act as an integrated database for the company.