Research On Enterprise Modeling For Manufacturing ERP

With the environment of internet economy and the knowledge economy, the market competition is becoming increasingly fierce; meanwhile the manufacturing industry is facing tremendous global pressure. Enterprise Resource Planning, taking information technology as its support, is the powerful tool within intense competition. Many manufacturing industries enhance their competitive advantage through ERP implementation. ERP is the result of advanced management ideas combined with information technology in manufacturing. The applications of ERP systems in manufacturing can make material flow, information flow, capital flow, and workflow integrated, and achieves the optimal allocation of resources. However, traditional ERP is difficult to support dynamic and changing environment. So manufacturing needs flexible ERP to meet the demand of agile management. How to design and implement flexible ERP system is a common problem concerned by manufacturing and software developers, and also is an urgent problem to be solved. Although some advanced information technology has been applied in the field of ERP, which makes the ERP with flexible features in some certain, this flexibility is still limited. It is mainly because that the development of the ERP system did not really catch the essence of operating a business, making the system usable only in certain specific contexts. In other words, the ERP system is not truly flexible. The emergence of enterprise modeling theory can exactly solve the problem of not being able to exactly describe the essence of operating an enterprise, and it is also a core part of manufacturing transformation and optimization of business process. Currently, there are several enterprise modeling systems and frameworks. It has big contribution for the enterprise diagnosis and model simulation, and it has corresponding research for total solutions of information. But it has little research on manufacturing ERP system development and implementation, and there should not be ignored, especially in insufficient support of the ERP life-cycle, leading to analysis, design model and system implementation model is out of line, and the interaction between the model and ERP system is not realized. So it can not be the true realization of flexible ERP. This paper had detailed research on enterprise modeling for manufacturing ERP from the following aspects.This paper analyzed the production types and advanced manufacturing mode at first. On this basis, it analyzed the characteristics of manufacturing ERP and the demands of enterprise modeling. According to these demands and comparative analysis of existing modeling frameworks, combined with CIM-OSA and advantage of integrated enterprise modeling, this paper established Victoria enterprise modeling framework for manufacturing ERP from view dimensional, life-cycle dimensional, and general-level dimensional. This establishment of framework is the basis and infrastructure of modeling process.This paper had comparative analysis of existing organization structure of manufacturing, and requirement analysis of organization structure reform in BPR and information technology environment. On this basis, it designed six elements, which are the organization unit, basic organizational unit, personnel, roles, virtual teams and hierarchy. And combined with flexible organization modeling methods, it designed flexible organization structure reference model according to different organization structure demands.According to resource sharing, resource reuse and the fast search and the other demands, this paper had classification research on manufacturing resource from product life-cycle and taking production as the core. And it designed resource description methods, such as resource pool, resource entity, and resource combination. This paper modeled manufacturing resource based on oriented-object ideas and designed resource representation model based on XML.According to multi-level and complex characteristics of manufacturing process, this paper decomposed manufacturing process based on CIM-OSA ideas, and it modeled process combined with oriented-object Petri-net method. On the basis of process reference model, this paper designed transformation rules to function models, extracted hierarchical functional mode, and designed function reference model based on IDEF0.Meanwhile it analyzed relationship between function model and information model. The enterprise modeling system for manufacturing ERP is established to provide support for the enterprise modeling framework and the modeling process. This paper designed four-level network architecture and function architecture according to requirement analysis of modeling system, and designed functions of modeling system in detail. Finally, the system was completed with the application of ASP.NET, XML languages and SQL Server 2005.Based on these studies, this paper took Harbin Bearing Factory as empirical research background for enterprise modeling, and then it modeled its organization structure, resource classification, and business processes in detail, mapping the corresponding functional model and information model. Accordingly, they laid the foundation for the rapid implementation for manufacturing ERP, and verified the feasibility and effectiveness of modeling framework and modeling methods for manufacturing ERP.The research on enterprise modeling for manufacturing ERP provides a new idea for software design and development methods, and it solves the problem of insufficient support about enterprise modeling framework for ERP system development and implement. Also it has important practical significance to improve the competitiveness of software developers, and supports the rapid development and reconstruction. At the same time, it provides an effective way of manufacturing organization structure reform in network, resource reuse, and business process reengineering. Furthermore, it lays the solid theoretical foundation for rapid implement and advanced manufacturing mode, and it has important theatrical value for research on mutual conversion between enterprise model and system model.