Explain steps of an Optimized Production Technology.
Answers
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Drum-Buffer-Rope (DBR) is the Theory of Constraints (TOC) production planning methodology originated by Eliyahu M. Goldratt in the 1980s. In fact, the concepts of DBR actually preceded the Five-Focusing-Steps and the notion of the “throughput world” in the development of the TOC paradigm.
While the DBR method is much simpler than the older Optimized Production Technology (OPT) algorithm and the recent Advanced Planning and Scheduling (APS) systems, for many production environments, especially those not currently- or consistently- dominated by an active internal bottleneck, an even simpler method can be adopted. We call this method S-DBR, to distinguish it from the traditional model, which we’ll refer to as traditional DBR.
S-DBR is based on the same concepts as traditional DBR and is certainly in harmony with TOC and the Five Focusing Steps. What distinguishes it from traditional DBR is its assumption of market demand as the major system constraint, even when an internal capacity constraint temporarily emerges.
S-DBR can be easily supported by traditional ERP/MRP systems and it is specifically intended to deal with fluctuating market demand.
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