Optimizing Fairness in Production Planning: A Human-Centric Approach to Machine and Workforce Allocation

• URL: http://arxiv.org/abs/2510.01094v1
• Date: Wed, 01 Oct 2025 16:41:18 GMT
• Title: Optimizing Fairness in Production Planning: A Human-Centric Approach to Machine and Workforce Allocation
• Authors: Alexander Nasuta, Alessandro Cisi, Sylwia Olbrych, Gustavo Vieira, Rui Fernandes, Lucas Paletta, Marlene Mayr, Rishyank Chevuri, Robert Woitsch, Hans Aoyang Zhou, Anas Abdelrazeq, Robert H. Schmitt,
• Abstract summary: The proposed system is validated through 16 test sessions with domain experts from the automotive industry.<n>Results indicate that the CP-based scheduling approach produces compact, feasible production plans with low tardiness.
• Score: 55.71151342699622
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This work presents a two-layer, human-centric production planning framework designed to optimize both operational efficiency and workforce fairness in industrial manufacturing. The first layer formulates the Order-Line allocation as a Constraint Programming (CP) problem, generating high-utilization production schedules that respect machine capacities, processing times, and due dates. The second layer models Worker-Line allocation as a Markov Decision Process (MDP), integrating human factors such as worker preference, experience, resilience, and medical constraints into the assignment process. Three solution strategies, greedy allocation, MCTS, and RL, are implemented and compared across multiple evaluation scenarios. The proposed system is validated through 16 test sessions with domain experts from the automotive industry, combining quantitative key performance indicators (KPIs) with expert ratings. Results indicate that the CP-based scheduling approach produces compact, feasible production plans with low tardiness, while the MDP-based worker allocation significantly improves fairness and preference alignment compared to baseline approaches. Domain experts rated both the Order-Line and Worker-Line components as effective and highlighted opportunities to further refine the objective function to penalize excessive earliness and improve continuity in worker assignments. Overall, the findings demonstrate that combining CP with learning-based decision-making provides a robust approach for human-centric production planning. The approach enables simultaneous optimization of throughput and workforce well-being, offering a practical foundation for fair and efficient manufacturing scheduling in industrial settings.

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