{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T09:26:58Z","timestamp":1760866018096,"version":"build-2065373602"},"reference-count":20,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2016,11,26]],"date-time":"2016-11-26T00:00:00Z","timestamp":1480118400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Scientific Research Fund of Hunan Provincial Education Department","award":["16B208"],"award-info":[{"award-number":["16B208"]}]},{"name":"MOE (Ministry of Education in China) Project of Humanities and Social Sciences","award":["13YJC630049"],"award-info":[{"award-number":["13YJC630049"]}]},{"DOI":"10.13039\/501100004480","name":"Natural Science Foundation of Shanxi Province","doi-asserted-by":"publisher","award":["2013021021-2"],"award-info":[{"award-number":["2013021021-2"]}],"id":[{"id":"10.13039\/501100004480","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>There is much uncertainty and fuzziness in product quality attributes or quality parameters of a manufacturing process, so the traditional quality control chart can be difficult to apply. This paper proposes a fuzzy control chart. The plotted data was obtained by transforming expert scores into fuzzy numbers. Two types of nonconformity judgment rules\u2014necessity and possibility measurement rules\u2014are proposed. Through graphical analysis, the nonconformity judging method (i.e., assessing directly based on the shape feature of a fuzzy control chart) is proposed. For four different widely used membership functions, control levels were analyzed and compared by observing gaps between the upper and lower control limits. The result of the case study validates the feasibility and reliability of the proposed approach.<\/jats:p>","DOI":"10.3390\/sym8120139","type":"journal-article","created":{"date-parts":[[2016,11,28]],"date-time":"2016-11-28T10:25:22Z","timestamp":1480328722000},"page":"139","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Attribute Control Chart Construction Based on Fuzzy Score Number"],"prefix":"10.3390","volume":"8","author":[{"given":"Shiwang","family":"Hou","sequence":"first","affiliation":[{"name":"School of Business, Huaihua University, Huaihua 418000, Hunan, China"}]},{"given":"Hui","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Mechanical and Power Engineering, North University of China, Taiyuan 030051, Shanxi, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8084-3267","authenticated-orcid":false,"given":"Shunxiao","family":"Feng","sequence":"additional","affiliation":[{"name":"School of Mechanical and Power Engineering, North University of China, Taiyuan 030051, Shanxi, China"}]}],"member":"1968","published-online":{"date-parts":[[2016,11,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1463","DOI":"10.1016\/j.ins.2006.08.013","article-title":"An alternative approach to fuzzy control charts: Direct fuzzy approach","volume":"177","author":"Kahraman","year":"2007","journal-title":"Inf. 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