Title: Evaluation of quality cost in a multinational company located in Tangier, Morocco

Authors: Mohamed Ben Ali; Dina Baghdadi Mazini; Insaf Ghailani; Said Barrijal

Addresses: Higher National School of Electricity and Mechanics, Hassan II University, Casablanca, Morocco ' Department of Biology, Faculty of Sciences and Technologies (FST), Abdel Malek Essaadi University, Tangier, Morocco ' Faculty of Sciences of Tetouan, Department of Biology, Abdelmalek Essaadi University, Tetouan, Morocco ' Department of Biology, Faculty of Sciences and Technologies (FST), Abdel Malek Essaadi University, Tangier, Morocco

Abstract: This study aims to evaluate the cost of obtaining quality (CoQ) of a multinational company in Tangier specialised in wiring. It also tries to identify the measures that can reduce the cost of non-quality and improve productivity time and there by improve competitiveness. According to our study, the CoQ represents 14.5% of the turnover including 10.4% of non-quality (internal and external failures). An analytical study was carried out concerning the quantification of all the components constituting the internal anomaly. It showed that machine stops have a significant effect on the increase of internal failures. To detect the main causes of non-performance, DMAIC, SMED and AMDEC approaches were used to decrease non-productivity time. This allowed the company to gain 41.3 days/year relative to each machine, which contributed to increase productive time and to generate an annual financial profit of 361,370.24 € (as a reduction of the non-quality cost of 6.36%).

Keywords: cost of quality; COQ; performance; DMAIC; poor quality; AMDEC; SMED; time of productivity; Morocco.

DOI: 10.1504/IJPQM.2021.113610

International Journal of Productivity and Quality Management, 2021 Vol.32 No.2, pp.216 - 245

Received: 24 Jan 2019
Accepted: 05 Aug 2019
Published online: 15 Mar 2021 *

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