![]() These constraints can be related to shortages in your raw material supply, manpower availability, maintenance etc.ĭoes it fit your capacity? Check your “Rough Cut Capacity Planning” (RCCP) Take into account whatever constraints you already know. Don’t make an unfeasible plan! With ‘feasible’ we mean: In this period, your MPS definitely needs to be feasible. The system will not overwrite the plan every night to avoid nervousness. Typically, in the first few weeks, before the planning time fence, the plan is kept stable and in control of the planner. Maintain a feasible MPS in the slushy zone The liquid zone which starts after the planning time fence, and the plan in this horizon is typically suggested by the planning system. This horizon is typically fully in control of the master scheduler and the system will not automatically adapt the plan. The planning time fence typically covers the cumulative lead time (manufacturing and raw material lead times). The slushy zone which is the period that starts after the frozen period of the first few weeks and ends at the planning time fence. The frozen zone, which consists of the detailed schedule (or where the detailed schedule is being prepared). Overall, we split the planning horizon in three parts: We need to shortly introduce this concept before digging further into this feasibility topic. ![]() In terms of feasibility, there is often a distinction to be made between the Master Production Schedule “before” the planning time fence versus the Master Production Schedule “after” the planning time fence. It needs to be openly discussed with the stakeholders. Allics’ viewĪlthough people might have deviating opinions on when you have a good Master Production Schedule, Allics suggests a good Master Production Schedule needs to tick the following boxes: The MPS (Master Production Schedule) is the item-level plan in the horizon of the upcoming weeks (often around 3 months period) and covers a longer period than the detailed schedule. We posted a similar blog on the detailed schedule “What does a good, detailed schedule look like?”. Don’t mistake it for the detailed schedule. In this article, we want to indicate what a good Master Production Schedule looks like in our opinion.
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