How be based on the job to flow, realize PDM

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Introductive PDM (Product Data Management System, namely: Product data runs a system) with ERP (Enterprise Resource Planning, namely: Company natural resources plans) , it is current advanced production technology group in domain of two when involve business management main techniques. From theoretic say, PDM can compositive run all information that concern with the product and the course related to the product. It can help the compositive application platform that company construction suits different compose computer to run an environment, right " extensive " all sorts of individual computers of development assist a technology to undertake " intensive is changed " management. ERP is what to development rises is in on MRP-II foundation, mode of advanced business management of enterprise. ERP drew modern government idea further, counteract the government that makes all concerned resource and process undertake unity to business activity, the control that reflects pair of cost adequately on the target, control to quality and the government that serve to the client, enterprise of with a view to makes a domain grant successive computerization government, basically use at production to make level and logistics government. Although PDM and ERP are managing a key to go up to differ somewhat, but, as a result of the formation of same product cycle involves PDM and ERP two domains, so, have a system to PDM and ERP compositive research, to shrinking effectively short sawn timber forms cycle, quicken a product to arrive from design domain of production domain change, thereby, from go up at all the modern course of stimulative enterprise has very important real sense [1][2][3] . The distinction between 2 PDM and ERP and connection PDM run the information related to the product and course, product of main side overweight forms the government of iformation flow, in the meantime, it or an important making can technology, the tie condition of the product logic message that runs according to place and certain course condition, support is based on the product of collateral project to fashion a process, its represent a function to have: Management of information of change of structure of information of data storage tube and management, product and product information configuration and management, project management, working flow management, product, standard component management. And ERP is pair of enterprises and the technology that make all concerned resource and process undertake unity administrative, side overweight makes the government that field other people sheds, its represent a function to have: Advocate manufacturing plan, stock demand plan, raw material purchases plan, workshop work plan, tool equipment management, financial system government, inventory management. Accordingly, PDM and ERP system composition include trends (process) with the static state (develop of the state information that descriptive product basically is in PDM, geometry attacks and the logistic relation between information, the production resource such as equipment, team and group, workshop, capital, inventory basically is in ERP) two respects, so, the information field that is a delegate with PDM to come true and the production that are a delegate with ERP between the domain compositive, must developing a system effectively " 1+1? 2 " below the premise of compositive function, the foundation that agrees with process target is shared to go up in global information, sufficient contented PDM and ERP system are mixed in the static state dynamic the requirement of two respects. To implement this one system compositive target, the distinction that must running the side such as approach of domain of object, action, management and means to PDM and ERP above all and connection provide methodical to know. 2.

1PDM and ERP distinction (1) the distinction that manages object content is mixed from PDM the concept of ERP is OK very clear know, the administrative target of PDM, it is the logistic relation between the information that describes product itself condition and information, and use, the second birth, course that passes these product condition information and requirement of process resource support, if the plan of the product proves process, concept to design the process such as process of formulate of process, detailed design process, craft, and these processes begin relationship of medium personnel configuration, coordination to wait. The administrative target of ERP, it is to join (with) the production resource at production (team and group of equipment, stock, workshop) the manufacturing process that uses with resource, basically include: The component raw material of the product is purchased, treatment, make and assemble, sale, service. So, PDM and ERP manage the content of the object, in domain of time, place, action, and the respect existence distinction such as the method step that relevant support tool, place takes. (2) the distinction that runs a course is in PDM and ERP system, include " process " concept, but, "Process " this concept is not in PDM and ERP system have identical meaning. Of PDM " process " it is with the product logic fashions relevant process, the child of the process is descriptive product condition " information " , the support that the process begins attacks to seeming geometrical develop wait for condition " information " and undertake using the technical personnel with reborn mental work to these information. In ERP system " process " it is with the product physics fashions relevant process, the directive information of the process is the product information that the process in PDM produces, the constituent line of the process gets the tie that logic of product condition information concerns and guidance, the child of the process is particular product or product component substance, the supportive target that the process develops basically is it is hypostatic " material " (production resource) with what basically undertake operating with physical labor means " person " . (3) the relation between target of the government in managing the discriminative PDM that concerns between object interior is: The carrier that information expands is a process, the stage production of the process is information; The relation between target of the government in ERP is: The carrier that material changes is a process, process action and the object that use up are material. If say to information element also exists in ERP domain, so, the information in PDM basically is from notional angle the geometry that describes a product, develop attacks information, and the information in ERP domain basically is the information of a few resource that configures a respect to undertake arranging to production from content shedding. 2.

2PDM and ERP connection are analysed according to above, PDM and ERP develop interior of form, system to run the respect such as the relation to existing in administrative content, process the distinction of different level. But, we are in no less than the analysis in preamble in that way, of contemporary company running is a dynamic system that is based on iformation flow and stock to flow to supplement each other, and the formation of the product is periodic involve PDM and ERP two domains, so, be based on complete product to form cycle, in light of the eye with the system, PDM and ERP are having close connection in the following respects: (1) the process action object in there is causal ERP system between process action object, the component that appears with physical form namely or product, it is object of action of the process in PDM system (the geometry that describes product condition from notional angle or develop attack information) and the corporeal expression that concerns logically between process action object. (2) the existence between the logistic alignment of the process is worn carry out and the physics that the information logic that the manufacturing process alignment in system of ERP of relation of test and verify is generation of pair of PDM process alignment concerns is carried out and test and verify, flow produces in ERP system optimize a foundation, and the academic basis that decides corresponding stock supports, the product information that is management of PDM system place and the logistic course with logistic development, perfect information. (3) the consistency that the consistency PDM that manages an end and ERP are having height on administrative target, PDM and ERP although administrative object and process existence distinction, but, its manage an end is to try to pass attemper scientificly and control, reduce error and do poorly done work over again, in as far as possible inside short time, expend through least resource, with most those who assure a product is the economic method and means, earliest appear on the market. (4) although the supports a condition to having a priori connection of the process is in in the distinction that preamble analyses, we also can discover, the geometrical develop of product abstraction attacks information, the product that process of since PDM domain develops, also be condition of test and verify of the mobile guidance base that ERP domain process develops and result. So aggrandizement PDM is mixed the connection between ERP, must use unified product geometry develop to attack message is right to it relevant process undertakes communication. (5) the process alignment in the coupling result PDM that the product of the enterprise is relation of logic of alignment of these two processes according to to the design of local stepwise refinement from whole the course is begun, and the process alignment in ERP according to from local to whole make, assemble a process to undertake, and the coupling result that the end item of the enterprise never is the same as the process series that course and domain begin twice this to go up in time coordinate just about. And the development as PDM and ERP, the area that their partial function also appeared to overlap each other, be like product structure / the statistic of product part and BOM management, management [2] . The experience that the compositive foundation project of 3 PDM and ERP carries out tells us, management of the project in PDM, attributive management, process management, software is enclosed wait for the function related to the process, if leave the logistic concern with design internal technological process, will naturally form each to each does things in his own way " process Gu island " , even if information natural resources of the static state, lack seasonable and correct deliver course and deliver an opportunity, also can form " information Gu island " , cause the continuance that designs cycle. In ERP domain, plan as natural resources of a kind of company and manage a resort, the enterprise produces the arrangement of flow, of facilities of plan of the personnel composition that must make flow place involve workshop, team and group according to the product, existing production, resources take up etc circumstance, and current productivity will decide, and the resource configuration that flow carries out must have condition of inventory, market, price and enterprise to purchase a plan to wait according to the enterprise will form. If break away from dynamic enterprise to run, same meeting exists " process Gu island " and " information Gu island " . Have the connection on logic in view of PDM and ERP system, undertake to PDM and ERP compositive, set out from the angle that accelerates a product to form cycle, have very big feasibility and very strong project practice sense. And to be opposite PDM and ERP undertake compositive, must search the compositive foundation of these two domains and compositive carrier. This one compositive carrier must have the following two foundations function: (1) PDM and ERP are covered on content two big fields, this is the requirement with compositive system. (2) can be eliminated on the function or screen is like the article 2 in narrates PDM and ERP the distinction between two big fields. This is the sufficient condition with compositive system. Shed the research of theory and technology to the job according to us, combine what the computer supports to work in coordination (CSCW) technology and relevant requirement, we think, the job that is based on computer support to work in coordination sheds administrative system (WfMS) can serve as pair of PDM and ERP to have compositive base, better those who realize pair of PDM and ERP is compositive. We manage working shedding the system to regard is the foundation with PDM and compositive ERP, because the job sheds a technology to regard the computer as the union of technology and automation technology,be, on the foundation that optimizes in flow, realize company business flow all or partial automation. In system of working shedding management, the trends of the accord of target of the unity that those who emphasize is flow, system and process joins, use the job to shed administrative system, OK and effective screen distributings the obstacle between PDM and ERP domain process, go up through process logic work in coordination, realize whole finished product to form a process to cross a territory (design domain, production domain) accurate successive development, the overall situation that implements a system finally optimizes development. Be based on idea of this kind of government, fashion the limits augment of flow the process for whole finished product, the limits of the technical support that cent process runs and technical condition map covers product information natural resources and product to make resource, is not to try to consider respectively. For example, undertaking to PDM and ERP compositive before, design the activity of the domain, because lack production domain to concern plan of resource allocation, team and group, equipment to take up,wait for information, be in impossibly design phase from fictitious the scientific rationality that production point of view assures a result, and the plan of production phase is made, can be the design result passivity that the basis has finished only undertake, the freedom that can optimize is spent and optimize a space to be restricted to be inside very little scope, cannot undertake optimizing to devising plan from the point of view that makes adroitly. And in the compositive environment that shedding the unity that manages a system to be a foundation with the job, when cent process is begun, need logistic to product geometry information and product to make resource try to consider integratedly, cross reference chime is moved, the oneness of flow of this kind of work, assured to regard a process as information natural resources of support and the unity of production resource. This kind supports the consistency of the consistency of the object and process target, make civil 2.

1 in the distinction that analytic PDM and ERP serve as separate system and exists be able to desalt or not answer exist. Additional, working shedding manages a system to serve as masterstroke with flow carry, run from what product information just faces technological process twice with production resource undertake support and be adjustmented. And the administrative target in system of working shedding management, work namely flow, it is in product information logic is restrained and plan of product production resource matchs, the harmonious, course that optimize a foundation to go up and produces is run, the main message source that working flow develops is PDM domain, the job sheds the corporeal base that develop to basically come from ERP domain, and the end that working shedding begins is to realize a product to attack to develop from the concept, change hypostaticly to physics again. So, use the job to shed administrative system to regard PDM and ERP as compositive foundation, in process target object of consistent, support agrees on the foundation, aggrandizement civil 2.

2 in the connection between analytic PDM and ERP [4][5] . Preamble has been analysed, PDM and ERP include trends and static state two respects, and the job flows running itself is trends, the product message that its process bore an object to include a static state at the same time again and production resource, shed trends in the job in running, job of have the aid of sheds management to systematic resource is distributed and be shared, on the foundation that agrees in the target, realized PDM and ERP effectively mutual the osmosis between and dialog, augment the action limits of PDM and ERP domain, aggrandizement the strength that these two domains produce effect in coordination. So, be based on the job to shed the PDM-ERP compositive system that runs a system, have local function answer with, the characteristic that global information is shared and process target agrees, and system of working shedding management is to make sure pair of PDM and ERP have the ideal medium with compositive system, it is the systematic bus line that perforative design and the unified process activity of production domain and resource use. Frame of 4 PDM-ERP compositive system is analysed 4.

1Compositive and overall frame analyses system of PDM-ERP compositive system PDM makes as a kind can technology, OK and active support is based on the product of collateral project to fashion a process. Its make can the play of action, basically be the tie concern that carries information logic, will coach the process that carry out or realizes information logic is begun, if use the satisfaction of logistic and local condition, will hold the opportune moment that activation process begins; Or the logistic line that uses information to begin, those who will control a process to begin is collateral spend and successive composition. And ERP system manages a resort as a kind, the guidance that its begin to the process and tie are plan to reflect through different resource is used and be being configured, provide needs hypostatic resource through be a process, assure the success that the process begins. Be based on above analysis, the PDM-ERP compositive system that if the graph is shown 1 times,builds is overall frame graph. In the graph 1 in, if regard PDM domain as the information vacuum of token product, the hypostatic space that regards the field that ERP involves as token product composition, so, the job that contacts PDM and ERP domain sheds administrative system, it is a token arrives from information vacuum the collect of process map function of hypostatic space, among them the execution of each process function, the formation that represents a kind of product process. Graph 1 medium job flows to adjust and optimize divide a level: (1) concern according to the logic of information of the products plan in PDM and fictitious production principle undertakes be optimizinged theoreticly, if the task in PDM is distributed, process and the phase such as the technology design of project management and product; (2) according to the workshop in ERP domain work plan, equipment takes up pick up the goods of circumstance, client plans, be united in wedlock? The work that makes in sheds a plan to undertake the adjustment of different level, the job that the preparation that decides finally carries out circulates plan; (3) in working shedding executive process, as a result of the abiogenesis incident in business activity, must undertake adjustment to deciding the job to circulate a plan formerly, make circuit afresh and decide resource configuration. This kind is based on the job to shed the compositive mode that runs a system, the data apply mechanically that is not will other system arrives inside his administrative limits, however the target according to flow activity, have the aid of its former subject system undertakes attemper and be usinged, avoided the complexity that information exchange manages between the system so. Additional, the data apply mechanically of will other system arrives inside his administrative limits, still come true without method at present, be like the limitation as a result of ERP system itself, make its change control in the product, the data set that waiting for systematic place generation with CAD, CAM, CAE especially is become and systematic recycle respect remains a problem that solves hard at present. Although can the the other side data of rigid is brought into undertake administrative in this system, so certainly will should have functional expansion to this system, bring more complex issue and giant workload. So, in PDM-ERP compositive system, use what the job flows to begin as bear the weight of the unified carrier that iformation flow and content shed, the job sheds the criterion that the process optimizes and tie condition, match and coordinate be condition of configuration of the stock in the tie concern between the information in PDM and ERP domain. Such since, the good qualities that the other side of have the aid of manages, be aimed at specific process requirement, enlarged respective action limits and domain, the collective aggrandizement tie to the target and guidance, what in the target the implementation on the consistent, foundation that attempers in coordination designs a domain is fictitious make, case of the other side undertakes test and verify, in the meantime, in production domain implementation is based on a process to be made what recombine adroitly, assuring a process is a product information runs paralell with production resource the process of guidance and support, product information and production resource is the information that supportive process is begun and continues and resource, raised the affinity between project practice and information logic. And dynamic job sheds the process in assuring compositive environment with product information, production resource open, bear, turn, close, the resource configuration that is a process, personnel attempers, the soft bus line that the activity develops, it is to assure product idea form to be mixed to the bridge that hypostatic form transforms smoothly change a key position. 4.

2PDM-ERP compositive system runs frame to analyse as enterprise informatization process begin, all of computer science department of each different and application software are in the function different function branch gets the business wider and wider application, working shedding runs a system, regard the function that overall situation coordinates in compositive system as module, how to get used to the need of the environment of this kind of distributed application of the enterprise, it is the key that makes sure compositive system is run. Current, the OMG of international management group (Object Management Group) the COBRA that the organization makes (Common Object Request Broker Architecture) the standard is the mainstream solution that solves the object in be based on environment of network of distributed different compose to work in coordination. Its technology target is, the software that assures to be based on an object has reliable transplanting sex and sex of each other operation in environment of network of distributed different compose, distributing in the different form that makes by a variety of operating systems that run on a variety of mainstream hardware platform thereby in the environment, build reliable distributed application, the manipulator between is made and call interface each other through offerring a target, make the visit between the object in distributed environment becomes transparent [6][7] . The complexity that each other operates between the different compose sex that sorts the object that in running a system, manages in view of the job and object, PDM-ERP compositive system provides the unified network environment that is based on different compose environment and different compose platform, it is the crucial link that makes sure whole and compositive system is able to run normally. Be based on this to plant advanced " in " technology, the PDM-ERP system that if the graph is shown 2 times,builds runs frame picture. Graph 2 in, the Intranet that is based on COBRA mechanism offers the functional module that distributed environment assures compose of this one different namely, system of working shedding management passes the Intranet communication network that is based on COBRA mechanism to attemper the supportive boy or girl friend that process place needs and service. LP (Local Process) it is the product fashions the local process that involves in the process, these processes begin series is a kind of collateral mode that is based on process condition, and system of working shedding management is to coordinate this to be based on the administration of alignment of collateral mode process, the technical condition that the process develops and corporeal condition come from PDM and ERP domain. 5 last words are based on the job to shed the PDM-ERP compositive system that runs a system, the process that involves PDM and ERP field place and resource (information natural resources and production resource) in bringing into unified job to shed administrative system, the process is begun in working shedding in, be shared through resource and the process is complementary, desalt or remove the shield between PDM and ERP. In the foundation with compositive process, realized PDM and ERP to go up in administrative target " intensive sex " , use working shedding to regard resource as carrier, those who realized iformation flow and content to flow is compositive, significant expansion the intensity of the limits of PDM and ERP action and action, raised the affinity with compositive system. CNC Milling CNC Machining