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Planning management is the most important aspect of management activities in large manufacturing enterprises. In addition to their large scale, large manufacturing enterprises are also reflected in the complexity of their manufacturing environment, such as multiple workshops with different specialties, multiple production projects, complex market environments, and so on. How to use a planning management model to effectively undertake project plans upwards, penetrate into end plans downwards, and carry out efficient management has become an important research topic for modern enterprises. This article proposes a new multi-level planning management structure and deploys a new priority algorithm at the workshop planning layer. This algorithm focuses on factors such as device loading and task preemption in the earliest deadline priority scheduling algorithm EDF, and has improvements in reducing task loss and aligning with actual production. In addition, innovation focuses on the study of planning, assessment, and management models in the field of scheduling research. The article proposes a plan performance model that can accurately evaluate project teams of different scales, resulting in a 14.74% increase in the plan execution rate of a certain enterprise.
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