{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T07:20:36Z","timestamp":1777706436367,"version":"3.51.4"},"reference-count":32,"publisher":"SAGE Publications","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IFS"],"published-print":{"date-parts":[[2022,8,10]]},"abstract":"<jats:p>As the Internet of Things (IoT) becomes more and more popular and full-grown, diverse technologies for measurement and collection of business data continually improve as well. Effective data analysis of and applications can be helpful to stores to make smart and quick decisions in a jiffy, so that the percentage of customer satisfaction and in-store shopping can increase to raise the total revenue. Some researchers have suggested that the number of customers who enter a store refers to a Poisson process. Based on previous research, an attribute service performance index was proposed in this paper. This paper reviewed the fuzzy one-tailed testing model of the attribute service performance index and put forward a fuzzy two-tailed testing model of two indices based on the confidence interval to verify whether the improvement had a significant effect. Now that this fuzzy evaluation model is built on the confidence interval of the index, we can diminish the chance of misjudgment caused by sampling error. Its design can incorporate the past data or expert experience. Thus, the evaluation accuracy can be retained in the case of small-sized samples.<\/jats:p>","DOI":"10.3233\/jifs-220090","type":"journal-article","created":{"date-parts":[[2022,5,24]],"date-time":"2022-05-24T11:53:05Z","timestamp":1653393185000},"page":"4849-4857","source":"Crossref","is-referenced-by-count":1,"title":["Fuzzy evaluation model for attribute service performance index"],"prefix":"10.1177","volume":"43","author":[{"given":"Chun-Min","family":"Yu","sequence":"first","affiliation":[{"name":"Department of Industrial Engineering and Management, National Chin-Yi University of Technology, Taichung, Taiwan, R.O.C"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kuen-Suan","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Industrial Engineering and Management, National Chin-Yi University of Technology, Taichung, Taiwan, R.O.C"},{"name":"Department of BusinessAdministration, Chaoyang University of Technology, Taichung, Taiwan, 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