Title: Measuring efficiency of just in time implementation using a fuzzy data envelopment analysis approach: real case of Iranian dairy industries

Authors: Kaveh Khalili-Damghani; Amir-Reza Abtahi

Addresses: Department of Industrial Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran. ' Department of Industrial Management, Faculty of Management and Accounting, Allameh Tabataba'i University, Postal Box 6479-14155, Haft-Peikar Alley, Nezami Ganjavi Ave., Tavanir St., Tehran, Iran

Abstract: In this paper, a procedure based on data envelopment analysis has been developed to measure the efficiency of complicated process in which just in time (JIT) practices transformed into operational and firm performance indices. A given organisation has been associated with a decision making unit (DMU) in which JIT practices are assumed to be inputs and operational and firm performance indices are considered. The fuzzy sets have been selected to measure the vague nature of JIT practices and performance indices. The proposed fuzzy DEA caused proper reduction in computational efforts. Real case study of Iranian dairy industry, as a proper testimonial in which high level of JIT practices play essential role, has been supplied to investigate the robustness of proposed approach.

Keywords: operations management; JIT practices; performance measurement; operational performance; firm performance indices; data envelopment analysis; fuzzy DEA; just-in-time; decision making units; DMUs; fuzzy sets; fuzzy logic; Iran; dairy industry; operational efficiency.

DOI: 10.1504/IJAOM.2011.045446

International Journal of Advanced Operations Management, 2011 Vol.3 No.3/4, pp.337 - 354

Received: 20 Nov 2010
Accepted: 25 Jan 2011

Published online: 14 Feb 2012 *

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