Research on a MES-Based Unified Code Generation, Management, and Traceability System for Discrete Manufacturing

To address common challenges faced by discrete manufacturing enterprises during digital and intelligent transformation—such as inconsistent material coding conventions, difficulties in coordinating multi-source BOM data, and disruptions in end-to-end lifecycle traceability—this paper proposes an MES-based framework for unified code generation, management, and traceability. The proposed framework adopts a bidirectionally linked “one item, two codes” strategy and establishes a structured model consisting of a static material code and a dynamic batch code. Through configurable coding rules, the framework enables unique identification of object attributes and dynamic mapping to production batches. By integrating a rule-parsing engine with a full-chain indexing mechanism, the system achieves closed-loop process management spanning BOM import, automatic code assignment, and shop-floor execution. Engineering practice demonstrates that the proposed system effectively mitigates conflicts caused by multiple codes for the same item and significantly improves material identification efficiency and quality traceability accuracy in complex manufacturing scenarios.