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Measuring uncertainties in MRP environments

S.C. Koh (Researcher, Department of Manufacturing Systems Engineering, University of Hertfordshire, UK.)
M.H. Jones (Principal Lecturer, Department of Manufacturing Systems Engineering, University of Hertfordshire, UK.)
S.M. Saad (Senior Lecturer, Department of Manufacturing Systems Engineering, University of Hertfordshire, UK.)
S. Arunachalam (Lecturer in the Manufacturing Engineering Subject Group, Coventry University, UK.)
A. Gunasekaran (Associate Professor of Operations Management in the Department of Management, University of Massachusetts, Dartmouth, USA.)

Logistics Information Management

ISSN: 0957-6053

Article publication date: 1 June 2000

Abstract

Many uncertainties in Material Requirements Planning (MRP) systems are treated as “controllable” elements, with a variety of buffering, dampening and other approaches being used to cope with them. However, such approaches are often found wanting, forcing enterprises into emergency measures to ensure delivery performance. Based upon the results of a questionnaire survey, this paper analyses the uncertainties in the aggregate, intermediate and operational levels that affect customer delivery performance in MRP environments. These uncertainties have been quantified and the relative importance to performance has been investigated. The results also show the widespread use of buffering, dampening and other approaches to provide a level of delivery reliability. It is contended that by concentrating on minimising the effects of the uncertainties, the underlying causes have not been addressed, resulting in sub‐optimisation of system performance.

Keywords

Citation

Koh, S.C., Jones, M.H., Saad, S.M., Arunachalam, S. and Gunasekaran, A. (2000), "Measuring uncertainties in MRP environments", Logistics Information Management, Vol. 13 No. 3, pp. 177-183. https://doi.org/10.1108/09576050010326574

Publisher

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MCB UP Ltd

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