Famous advisory orgnaization CIM Data is right of PDM is such definitions: "PDM is a management the technology of all information related to the product and process. PDM system ensures dog the mass data that design, production place requires and information, support from this and defend a product " . And Gartner Group is to the definition of PDM: "PDM is an auxiliary tool, it uses at constructing inside enterprise limits to engineer the collateral cooperation environment that the product realizes from the product, a mature PDM system can make all participation found, communication and the staff that maintain products plan intent share the data of all different compose related to the product freely in whole product lifecycle, wait like file of blueprint and digitlization documentation, CAD and product structure " . Read these two definitions carefully, discover not hard: PDM can be narrow sense those who go up, also can be broad sense those who go up. Tell from narrow sense, PDM only government and project design the information inside relevant domain; Tell from broad sense, it can cover the from the product market demand in whole industry analysis, design, make, sale, service until safeguard the information in waiting for integral lifecycle process. CNC MillingCNC Machining