4.2.3 BOM in PDM
PDM is actually the core module connecting CAD/CAPP and ERP. It manages the product-related "information (ERP)" and "process (CAD/CAPP)" technologies, which are driven by the "process (CAD/CAPP)" technology. The “information (ERP)” transformation, the important intermediate process of “information (ERP)” to “process (CAD/CAPP)” technology, forms a two-way seamless transmission of data, avoiding a large amount of coincident data. The figure below shows the structural relationship diagram.
Because different departments have different forms of BOM information, enterprises often spend a lot of manpower and time to complete these reports, and they must constantly maintain the consistency of the BOM to avoid serious MRP operation errors.
The manual entry method used by Sichuan Electric Appliance Co., Ltd. entered the BOM information counted from the CAD department. It takes about one week for a skilled entry person to enter the BOM data of a product, and does not include the rework time caused by the input error. It has caused bad effects; now it is only a few minutes to automatically transfer BOM data to the ERP system through PDM.
Throughout the product lifecycle, PDM supports the underlying data warehouse (all systems share a single database), with a bill of materials (BOM) as the core of its organization, and links all engineering data and documents that define the final product to achieve product data. Organization and management, such as product preparation management, diagram document management, workflow management, design change management, authority (role) management, version management, project management, maintenance records, and log management.
PDM systems are divided into three categories according to their respective functional characteristics and engineering problems. They are focused on document and data management. The design process and product structure management are mainly CAD-oriented. System integration platform.
The second category is most closely related to BOM information, and has been transformed to achieve the BOM information required by ERP.
Today, most popular PDM systems can be integrated with ERP systems. Some ERPs also have their own PDM products, which effectively promote communication and communication between the production, design, procurement and sales departments of the ERP system.
