{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T01:47:28Z","timestamp":1768441648777,"version":"3.49.0"},"reference-count":61,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2025,9,3]],"date-time":"2025-09-03T00:00:00Z","timestamp":1756857600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Quality &amp; Reliability Eng"],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>An effective tactical asset management program, incorporating condition and degradation assessments, is essential for asset\u2010intensive organizations to make informed decisions about maintenance and renewal. Since asset degradation is an inherently stochastic phenomenon, models based on stochastic processes are the most suitable approach for accurately predicting it. Asset condition assessment and event data are collected and recorded during inspection and maintenance activities to model equipment degradation. A degradation model that integrates these data associated with assets is highly desirable for predicting the effective and reliable remaining useful life (RUL). This study develops a novel Degradation Hidden Semi\u2010Markov Model that uses both failure and condition data to predict RUL of critical pumps in the wastewater network of a regional town in South Australia. To evaluate the model's performance and outcomes, a portion of the condition data was reserved as the test dataset, while the remaining historical condition data was used for degradation and RUL modeling. In addition, the predicted RUL was validated using both forward\u2010backward and Viterbi algorithms. Results showed not only the expected asset health state closely followed of the actual, but also the absolute prediction error of the estimated RUL using these algorithms was minimal.<\/jats:p>","DOI":"10.1002\/qre.70064","type":"journal-article","created":{"date-parts":[[2025,9,3]],"date-time":"2025-09-03T18:09:07Z","timestamp":1756922947000},"page":"3430-3444","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A Degradation Hidden Semi\u2010Markov Model for Predicting Asset Health and Remaining Useful Life"],"prefix":"10.1002","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6022-6210","authenticated-orcid":false,"given":"Neda Gorjian","family":"Jolfaei","sequence":"first","affiliation":[{"name":"School of Chemical Engineering The University of Adelaide  Adelaide South Australia Australia"}]},{"given":"Raufdeen","family":"Rameezdeen","sequence":"additional","affiliation":[{"name":"Sustainable Infrastructure and Resource Management (SIRM) UniSA STEM University of South Australia  Mawson Lakes South Australia Australia"}]},{"given":"Leon","family":"van der Linden","sequence":"additional","affiliation":[{"name":"South Australian Water Corporation  Adelaide South Australia Australia"}]},{"given":"Indra","family":"Gunawan","sequence":"additional","affiliation":[{"name":"Adelaide Business School The University of Adelaide  Adelaide South Australia Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5829-8944","authenticated-orcid":false,"given":"Christopher W. 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