CPDM reachs its key technology
- Time:
- Click:62
- source:SCHOCH CNC Machining
1 complete product data model and its changeover cooperate with product definition development involves a lot of branches, included all at the business function of the whole lifecycle of product and process and resource applying, the demand of the information of different level product that must establish ability of complete product data model to satisfy a product to develop. Although unified data model will make data switch and it is exceeding and easy to share, but the unified data model that industry uses contented and all requirement and case very hard, and although same department is right product lifecycle is different the description of level sometimes also cannot compatible, the product that produces from this is whole the skimble-scamble sex of the information model of lifecycle, this is shared to information and exchange brought a trouble. Build and use a kind of neuter mechanism that does not rely on specific application system, realize the standardization of information model, realize lifecycle of different system, product the information exchange of different level is must. STEP(ISO10303) is an international standard about digitlization product data presentation and exchange, the purpose is the neuter mechanism that provides a kind not to rely on specific application system, use descriptive product the data in whole lifecycle, it is a kind of of the standardization that realizes information model at present very good choice. Can realize lifecycle of different system, product through STEP standard the information exchange of different level. Additional, in coordination product development often needs distributed visit, this needs the support of technology of distributed software package. Basically put in 3 kinds of distributed mechanisms at present, namely CORBA, COM/DCOM and Java, because return the distributed computation frame that did not unite, and should unite these a few kinds of standards at present impossible also, because this CPDm must be on certain level,supportive CORBA, COM/DCOM and Java/RMI reach the communication between its and issue of each other operation. At present CORBA is the mainstream of technology of distributed software package. But in the development that is based on Windows, have the aid of.
NET technology place offers, the inattentive coupling technology that is based on XML, combine COM+ technology, can distribute applied process logic easily the network, and need not whether are end of attend to service and client end belonged to same kind of structure, executive mechanism whether identical, interface is corresponding. 3.
The manages a product lifecycle of 2 pairs of dynamic data and process and process and resource be closely bound up, it is the dynamic technological process that person, application, data set becomes, the process can differentiate again for many subroutine, the management of opposite Cheng is so crucial. The product develops a process to must pass working shedding and process management to satisfy the need that collateral product develops in coordination. Working shedding and process management (Workflow/processmanagement) the primary process that uses definition and control data manipulation, when main management undertakes operating to data when the user, between the person, the data flow direction between the activity, and necessary general affairs and data activity dog inside the lifecycle in a project. Dog and alter a course of control product, in order to enhance the automation rate of product development process. The job flows and process management dominates flow of data management, work and change market at an organic whole, make through coordinating an enterprise automatically to organize the task and process, information of the product develop in coordination finish smoothly. Working shedding and process management are project management is necessary, at present project management becomes more and more serious in the enterprise, but in traditional PDM, what project management considers is very few. Want to shed management to realize project management through the job, still put in certain difficulty, because the job sheds management,module basically is right the business technological process that project set faces in the enterprise undertakes coordinate and be controllinged, but do not provide the measure such as examination of effective plan monitoring, achievement commonly, control the progress of the project very hard. Additionally the job flows and the category of process management and project management also is put in very big difference. In addition, in the development process of the product, the formation of data the process is trends. Product data wants experience to arrive from generation perfect, revise, release, freeze etc a series of evolve into a process, this one process is the lifecycle of data object. The lifecycle of the lifecycle of product data object and product is a meaning. Product data object includes in the change in its lifecycle: Of data content change, the change of data condition, the shift of memory position, user logarithm occupies the change that operates attributive to wait. Through studying the lifecycle of product data object, can dog well and control the change of product data object. The lifecycle of product data object is the gather of lifecycle condition object and condition changes object. The status change of data object is conditional, below certain regulation, the condition of the object matures gradually. General type of every kinds of data is corresponding oneself lifecycle, the enterprise can be mixed according to the type of data object the data that the pattern plate of regular use lifecycle of the enterprise manages all sorts of types. 3.
3 open mode can expand the function of the core module of architecture CPDm already very mature, the powerful function of CPDm depends on outer the function of application software. CPDm can pass compositive and special tool for instance project management, project is changed, supplier and configuration management, component management strengthen pair of products manage in coordination, achieve what support crosses an enterprise to work in coordination environmental purpose. CPDm frame must be not had seam compositive these applied tools and module, supportive different compose uses the operation of transparent each other of system and different compose data. Do not have CAx application tool meet embedding also is current in the unifinication solution of CPDm the enterprise is pressing of need. CPDm although function again powerful, module is again much, but the complexity of the news type that governs as a result of systematic place and model, and differ in thousands ways of the information of different company, function, to suit products plan and the complex and alterable need in production process, still also ask CPDm system has good open sex. PDM should be the basic model that a function can expand and frame, among them " structural member " but modular, can undertake assembly to satisfy different requirement thereby. The system builds systematic government model and information model through using OO method, provide the object-oriented tool that build a model and development tool, support 2 development of the user, those who make is true get used to business demand. 4 conclusion product defines administrative CPDm in coordination is a platform that can expand, it is the complete solution that product complete lifecycle manages, it is the frame with business compositive information and core, the information that can realize a product to be defined in coordination is compositive. CPDm key depends on how defining complete product to digitlize model and the communication between many applied systems and each other operation. At present the information communication between the applied system of CPDm platform and still exist in distributed computation mechanism obstacle, between different tool, swim up and down between link accomplish information adequately very hard still compositive. Because CPDm is commonly,be the job is in the environment of Internet/Intranet additionally, must consider the safe mechanism that data visits, enhance the security that network visit and data transmit. CNC Milling CNC Machining