Analysis of Buffering Techniques in MRP Systems with a Matrix Loading Model

Abstract

This paper addresses the development of a matrix model for the initial loading procedure in material requirement planning systems with variable lead time. This model expresses the relationship between the planned production quantity in the Master Production Schedule and the production lead time required. Using this model, an analysis of the functions of buffering techniques before loading are discussed. Methods for allocating safety stock and safety lead time using the service level approach are presented to accommodate quantity or lead-time uncertainties. The matrix model is used to study fixed-lead-time loading. The relationships between fixed-lead-time loading and variable-lead-time loading are examined. Methods for allocating buffering quantities for fixed-lead-time loading are developed.