According to the actual needs of discrete manufacturing companies. Integrate project management information with product data model information in conjunction with PLM technology. It mainly studies the characteristics of project management technology in PLM. Utilize existing modeling techniques. A project management model and process information model for PLM was initially established. Since the introduction of the product life cycle management PLM, it has quickly become the focus of manufacturing. PLM combines e-commerce technology and collaborative technology to integrate product development processes with SCM, CRM, ERP and other systems, transforming island-based process management into integrated integrated management, from conceptual design, product design, product production, and product maintenance. To the comprehensive digitization of management information; to realize the improvement of enterprise knowledge value and knowledge sharing management, product development and business process optimization, thereby comprehensively improving the production efficiency of enterprises and reducing the cost of product life cycle management to enhance the market competitiveness of enterprises. At present, PLM software is mainly used in large and medium-sized enterprises with complex product structure, long design cycle and large design workload. The application industry is mainly distributed in transportation, aerospace, electronics, machinery manufacturing and so on. For small and medium-sized enterprises, only some independent modules in the PLM system are applied, such as document management and product structure management. How to combine these independent modules organically becomes an urgent need now. 1 Project Management Technology in PLM As an important function in the PLM system, project management has its own potential compared with the professional project management system. It not only manages project documents, but also performs schedule management, task tracking and resource allocation. The product structure management module, workflow and process management module, user management module, change management module and collaborative work platform in the PLM system can be used to support the PLM system for project management, and then integrate the functions of these modules to build the project. Management model. (1) Product structure management. The PLM system generally adopts the view control method to manage and describe various different division methods of a product structure. The product structure view can be defined according to the specific requirements of the project task. It also reflects the project milestone requirements for product structure information. (2) Workflow and process management. The workflow and process management of the PLM system provides a computer environment that controls parallel workflows. Using the PLM graphical workflow editor, you can build parallel workflows in the PLM system that fit your business. According to the structural characteristics of the project task, the workflow and process management module can be used to establish related serial or parallel processes for the task data objects. After the data object in the task is given to the process, the process is used to control the flow of the data object, and the workflow and process control automatically push the document to the next step according to the operation of each link. If the task has related data objects assigned to the process, the task can only be submitted after all the data objects assigned to the process have completed the corresponding process, and continue to the next project task node. (3) User management. The PLM system manages the personal information of the system users. The project leader can use this information to organize a complete integrated product development team for a given project. (4) Change management. The change management of the PLM system is based on workflow and process management, and the entire change process is controlled through the engineering change process. During the execution of the project task, if there is an extension or resource conflict, the task can be rearranged through change management. (5) Collaborative work platform. The PLM system provides collaborative tools, team databases, team forums, and instant messaging to support collaborative work tools. In the entire management phase after the project is established, the user will need to exchange project information with other people in the project who have assigned tasks. In this case, PLM's collaborative work tools can be used for instant communication by multiple users. 2 Establishment of a project management model for PLM 2.1 Project Data Model of PLM System According to the basic theory of project management, a project can be defined as an activity in which a target activity transforms some form of input into some form of output under specific circumstances and constraints (usually time and resources). The PLM system project object should include all the information portals associated with the project being developed. In order to effectively implement a project, steps such as project planning, schedule development, process monitoring, and analysis are required. In the project planning phase, the task object and the instance of the process object need to be used to determine the structure of the project, and a project is divided into relatively independent, small-scale task units. A project consists of n tasks, and a task can be subordinate to m projects. There is a 1:1 connection between the task and the process, and each task corresponds to a process object. Other management objects that are associated with the project, as well as project teams, project managers, users, and calendars. The calendar determines the schedule of the resources assigned to the task and the scheduling of the tasks themselves. The cost of the task can be calculated based on the resource consumption of the task. The relationship between the project and the business object folder, the basic record of the part, the basic record of the document, the basic record of the engineering drawing and the basic record of the model, on the one hand is used to manage the data of the project, on the other hand is used to manage some success Results and product data formed in the implemented project. Next page Flexible Diamond Strips and Tapes for Superfinishing
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