Cover-time planning, a method for calculation of material requirements

Article Abstract:

Cover-time planning is a computerized calculation option to material requirements planning (MRP). The method employs a master production schedule with forecasted demand rates for end-use items, but does not possess automatic time-phasing ability of MRP. Cover-time planning has also been compared to the Kanban method, which has computerized but limited applications in pull based production planning and control systems.

Methods

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A capacity-constrained multi-level inventory and production control problem

Article Abstract:

The capacity constrained multistage inventory and production control problem in material requirements planning is considered. Specifically, it is expressed and solved as a dynamic programming problem with the objective function of minimizing inventory and shortage costs. A numerical example of its implementation and a comparison with the traditional MRP, Kanban and Cover-Time Planning models are also discussed.

Production control, Economic lot size

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Formulas of MRP

Article Abstract:

Material requirements planning (MRP) has become the most popular inventory control method since the 1970s. Most textbooks present MRP calculations in the form of tables. However, it is argued that real MRP calculation can only be communicated using formulas. Formulas for MRP are presented as well as discussions on the correlations between MRP and input-analyses, and MRP-related inefficiencies.

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