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Formulas of MRP
1996 (English)In: International Journal of Production Economics, ISSN 0925-5273, E-ISSN 1873-7579, Vol. 46-47, p. 127-136Article in journal (Refereed) Published
Abstract [en]

This paper presents MRP in formulas. The usual presentation of the MRP-calculation in textbooks for operations management and production economics in tables are described here in formulas. In the MRP-calculation: first MRP reschedules already open orders to current gross requirements, then MRP calculates and time-phases planned orders to satisfy remaining gross requirements. The MRP-calculation can face an open order with a planned due date in past time, and where the real due date will be some period in the future. Such problems are seldom pointed out in textbooks, but the presented formulas must handle it and similar problems. The paper tries to postulate the “real” MRP-calculation. It is important that we define what we really mean when we talk about MRP, formulas are a supreme method for communication. Furthermore the paper points to the connections between MRP and input-output analyses. Definitions of inefficiencies related to MRP, “remnant stock” and “imbalance”, are discussed with used formulas.

Place, publisher, year, edition, pages
1996. Vol. 46-47, p. 127-136
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Industrial Logistics
Identifiers
URN: urn:nbn:se:ltu:diva-9498DOI: 10.1016/0925-5273(95)00163-8Local ID: 8252d850-7645-11db-962b-000ea68e967bOAI: oai:DiVA.org:ltu-9498DiVA, id: diva2:982436
Note
Upprättat; 1996; 20061117 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-04-10Bibliographically approved

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Segerstedt, Anders

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