Freezing the master production schedule for material requirements planning systems under demand uncertainty

Article Abstract:

A study is conducted to help multi-level material requirements planning practitioners make better selections of freezing parameters in master production schedules (MPS) in manufacturing environments. A model was built to investigate MPS parameters, including planning horizons, freezing proportions, freezing methods and replanning periodicity. The study also examines the effect of forecasting errors on the selection of MPS freezing parameters and system performance.

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Alternative approaches for reducing schedule instability in multistage manufacturing under demand uncertainty

Article Abstract:

Schedule instability resulting from uncertainties in demand or supply and lot sizing affects the implementation of material requirements planning (MRP) systems. Freezing the master production schedule is the most effective way to reduce the instability and cost of multilevel MRP systems since the freeze duration includes the cumulative lead time.

Production control, Economic lot size

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A taxonomy of manufacturing strategies in China

Article Abstract:

Development of taxonomy, for understanding manufacturing strategies and methods of operations management adopted in China, is described.

China, Production Management, Usage, Probabilities, Probability theory, Production planning

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