Gamze Esma BektaşEge CömertEzgi Sena YılmazMelis Tan TacogluÖnder BulutBurçin KasapPınar AydınMustafa İnceoğluEda BadakHasan ŞenolYılmaz, Ezgi SenaTaçoğlu, MelisBulut, ÖnderBektaş, Gamze EsmaCömert, EgeKasap, BurçinÖzcureci, KaanN.M. Durakbasa , M.G. Gençyılmaz2025-10-0620239789819650583, 9783031991585, 9783031948886, 9789819667314, 9789811937156, 9783030703318, 9789811622779, 9789811969447, 9789819701056, 9789819748051978303124456821954364, 219543562195-435610.1007/978-3-031-24457-5_552-s2.0-85151152190https://www.scopus.com/inward/record.uri?eid=2-s2.0-85151152190&doi=10.1007%2F978-3-031-24457-5_55&partnerID=40&md5=8fffe86c75c5464c968bed5a8045fa29https://gcris.yasar.edu.tr/handle/123456789/8562https://doi.org/10.1007/978-3-031-24457-5_55In this paper a real-life flexible job shop scheduling problem (FJSSP) for valve production having sequence-dependent setup times and machine unavailability constraints is studied. The aim is to minimize the weighted sum of earliness and tardiness of the scheduled jobs. Since this problem is known to be in the NP-Hard class we develop a Genetic Algorithm (GA) enriched with Iterated Local Search (ILS) to obtain near-optimal solutions for both the company’s problem and also for much larger instances in a reasonable run time. For the real-life implementation we develop a user-friendly Decision Support System (DSS) consisting of databases for the inputs a GA algorithm embedded as Python code and a Gantt Chart representation of solutions as the output. © 2023 Elsevier B.V. All rights reserved.Englishinfo:eu-repo/semantics/closedAccessDecision Support System, Flexible Job Shop Problem, Genetic Algorithm, Iterative Local Search, Machine Unavailability, Sequence-dependent Setup Times, Weighted Earliness And Tardiness, Artificial Intelligence, Decision Support Systems, Iterative Methods, Job Shop Scheduling, Local Search (optimization), Earliness And Tardiness, Flexible Job-shop Problem, Flexible Job-shop Scheduling Problem, Iterative Local Searches, Machine Unavailability, Scheduling Problem, Sequence-dependent Setup Time, Unavailability Constraint, Weighted Earliness And Tardiness, Weighted Sum, Genetic AlgorithmsArtificial intelligence, Decision support systems, Iterative methods, Job shop scheduling, Local search (optimization), Earliness and tardiness, Flexible job-shop problem, Flexible job-shop scheduling problem, Iterative local searches, Machine unavailability, Scheduling problem, Sequence-dependent setup time, Unavailability constraint, Weighted earliness and tardiness, Weighted Sum, Genetic algorithmsGenetic AlgorithmDecision Support SystemMachine UnavailabilityFlexible Job Shop ProblemWeighted Earliness and TardinessIterative Local SearchSequence-Dependent Setup TimesConference Object