Title: The analysis and interpretation of quality cost using rough set theory: a case study from the ceramic industry

Authors: Erfan Zarafshan; Samira Rezaei Toroghi; Reza Sheikh; Shib Sankar Sana

Addresses: Faculty of Industrial Engineering and Management, Shahrood University of Technology, Shahrood, Iran ' Faculty of Industrial Engineering and Management, Shahrood University of Technology, Shahrood, Iran ' Faculty of Industrial Engineering and Management, Shahrood University of Technology, Shahrood, Iran ' Kishore Bharati Bhagini Nivedita College, Behala, Kolkata-700060, India

Abstract: Total cost of quality plays a remarkable role in all companies so they use this information of quality cost to achieve some aims: first of all to improve the quality, to control the quality cost and last but not least to have effects on profit. In the context of management, rough set theory is one of the new ways which is used to analyse the quality costs and determine the crucial indicators of quality. Rough theory is used to collect information about the cost of quality of 11 reputable companies which are active in bourse Iran and belong to the ceramic industry over a period of five years and finally, three high-performance rules have been formed so that managers can use these rules in the industry to analyse the current situation and anticipate the future.

Keywords: total cost of quality; TCOQ; total quality management; rough set theory; Crosby's model.

DOI: 10.1504/IJSCOM.2021.114628

International Journal of Service and Computing Oriented Manufacturing, 2021 Vol.4 No.1, pp.11 - 31

Received: 15 Jan 2019
Accepted: 21 May 2019
Published online: 29 Apr 2021 *

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