Multi-Criteria Dispatching

Multi-criteria dispatching is the scheduling approach that ranks candidate lots using a weighted combination of competing objectives - it enables balanced decisions across speed, due-date, setup, and risk constraints.

What Is Multi-criteria dispatching?

• Definition: Dispatch scoring method combining factors such as priority, queue age, processing time, and setup compatibility.
• Decision Structure: Each lot receives a composite score from configured weights and normalized features.
• Objective Flexibility: Supports simultaneous optimization of throughput, cycle time, and due-date adherence.
• Policy Customization: Weight tuning reflects business priorities and process risk posture.

Why Multi-criteria dispatching Matters

• Tradeoff Management: Avoids over-optimizing one metric at the expense of others.
• Operational Adaptability: Weights can be adjusted for changing demand and bottleneck conditions.
• Priority Transparency: Makes dispatch rationale explicit and auditable.
• Performance Improvement: Often outperforms single-rule heuristics in high-mix environments.
• Risk Control: Can embed queue-time and quality-critical constraints directly in scoring.

How It Is Used in Practice

• Feature Design: Define reliable inputs representing urgency, efficiency, and constraint risk.
• Weight Calibration: Tune scoring weights using simulation and historical KPI outcomes.
• Governance Review: Reassess weights regularly to maintain alignment with production objectives.

Multi-criteria dispatching is a practical framework for balanced fab scheduling decisions - weighted scoring enables controlled tradeoffs across competing operational goals.