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Although exchange orders and their deadlines may be predefined, it can sometimes be more cost-effective for the MRO company to perform module exchanges before these deadlines, despite potential earliness penalties, due to operational capacity constraints and inventory costs. Moreover, exchange modules vary in quality and age, requiring additional transfer fees between the MRO service provider and the customers to compensate for these differences. In this study, we address the joint problem of overhaul planning and exchange scheduling from the MRO company\u2019s perspective. We propose a mixed-integer programming model aimed at minimizing the total cost of earliness penalties, switching, procurement, and inventory. We introduce a valid constraint to enhance computational performance, accelerating the search for an optimal solution. Through comprehensive numerical analysis, we evaluate the model\u2019s computational performance and derive managerial insights on how key parameters influence optimal scheduling and inventory decisions.<\/jats:p>","DOI":"10.1142\/s0217595925500265","type":"journal-article","created":{"date-parts":[[2025,5,30]],"date-time":"2025-05-30T10:08:04Z","timestamp":1748599684000},"source":"Crossref","is-referenced-by-count":0,"title":["An Integrated Maintenance Overhaul Scheduling and Inventory Control Model with Multiple Stages and Quality Categories"],"prefix":"10.1142","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-0690-9972","authenticated-orcid":false,"given":"Ameen B.","family":"Alshikh","sequence":"first","affiliation":[{"name":"Department of Industrial Engineering, King Abdulaziz University, Saudi 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