Criticality classification of spare parts: A case study

Criticality classification of spare parts: A case study

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Article ID: iaor20126196
Volume: 140
Issue: 2
Start Page Number: 570
End Page Number: 578
Publication Date: Dec 2012
Journal: International Journal of Production Economics
Authors: , , ,
Keywords: supply & supply chains, maintenance, repair & replacement, combinatorial optimization, decision theory: multiple criteria
Abstract:

This paper proposes a spare part classification method based on item criticality. Starting from a multi‐criteria analysis, the proposed model converts relevant criteria impacting item criticality into a single score presenting the criticality level. The obtained criticality level is used to rationalize the efficiency of the spare parts inventory policy. The model presents the multi‐criteria classification problem in a logic decision diagram where AHP is used to solve the multi‐criteria decision sub‐problems at the different decision nodes of the diagram. The method was tested and implemented in a petrochemical plant and the results of this case study are presented.

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