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The Monte Carlo simulation is performed to obtain the CED profiles, which are plotted for different parameter settings. Under different upward or downward change sizes, a detailed comparison is conducted among these TBE charts. The results show that both EWMA TBE and CUSUM TBE charts outperform the Shewhart TBE chart in terms of the CED profiles under both small and large changes. Moreover, both the EWMA and CUSUM TBE charts have their own strengths and weaknesses under certain specific changes and a guide on selecting EWMA or CUSUM TBE chart based on the change sizes is provided. Finally, a real dataset of organic light\u2010emitting diodes (OLEDs) failure time from Samsung company is applied to show the feasibility of the CED indicator in monitoring the\u00a0process.<\/jats:p>","DOI":"10.1002\/qre.70122","type":"journal-article","created":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T17:48:52Z","timestamp":1764784132000},"page":"1116-1127","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Detailed Comparison of Different Times Between Events Charts in Terms of the Conditional Expected Delay"],"prefix":"10.1002","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5556-2612","authenticated-orcid":false,"given":"XueLong","family":"Hu","sequence":"first","affiliation":[{"name":"School of Management Nanjing University of Posts and Telecommunications Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhi","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Management Nanjing University of Posts and Telecommunications Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fan","family":"Xia","sequence":"additional","affiliation":[{"name":"School of Management Nanjing University of Posts and Telecommunications Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fupeng","family":"Xie","sequence":"additional","affiliation":[{"name":"School of Automation Nanjing Institute of Technology Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jianlan","family":"Zhong","sequence":"additional","affiliation":[{"name":"School of Economics and Management Fujian Agriculture and Forestry University Fuzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,12,3]]},"reference":[{"key":"e_1_2_8_2_1","volume-title":"Introduction to Statistical Quality Control","author":"Montgomery D. 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B.Chong KhooandM.Xie \u201cA Study of Time\u2010Between\u2010Events Control Chart for the Monitoring of Regularly Maintained Systems \u201dJohn Wiley & Sons Ltd.25 no.7(2009):805\u2013819.","DOI":"10.1002\/qre.977"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1080\/08982112.2021.1978489"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1080\/08982112.2020.1830417"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cie.2014.09.027"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/qre.1918"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1080\/16843703.2015.11673376"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/qre.1304"},{"key":"e_1_2_8_15_1","unstructured":"P.Ranjan M.Xie andT. 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