These two propositions address the fundamental flaws of classic MRP, too synchronous, too nervous, too much relying on data accuracy.
On one hand DDMRP defines a new method, with simple, robust and dynamic rules everyone can understand and apply. The core consists in a replenishment order generation engine based on three colored zones, which interpret demand signal within ranges, not only as single target
value like MRP. Then DDMRP address planning and strategy within a comprehensive model.
On the other hand, IBP, directly derived from MRP logic, bridges MRP fragilities with a structured process. By monthly challenging demand, supply and finance it allows steering supply chain in proper direction, aligned with strategy.