We all know what ERP is … the major information management system for manufacturers (and others) that integrates all of the major functions of the business. There is still some confusion, however, about just how some of the other approaches – Lean Manufacturing, Theory of Constraints, DDMRP, etc. – fit in and whether they replace ERP or are complementary.
We supply chain and operations management professionals tend to think of demand as a given. It is what it is, and the job is to use resources to meet demand in the most efficient and effective way possible.