Research Of Key Techniques In Application Service Provider (ASP) Based Networked Manufacturing System

Networked Manufacturing is a new manufacturing mode, which was driven by the development of information technologies (IT), and was originated for deal with the challenge of globalization of economics. It carries on the enterprises' activities (e.g. production design, manufacturing, sailing, stock and management) that cover the whole product lifecycle by means of the advanced technologies of network, production and management, and via the cooperation and resource sharing between enterprises, thereby improve the enterprises' core competencies. In order to help the enterprises to meet and accept the networked manufacturing mode, we must find an easier and cheaper mode to implement the networked manufacturing, and we choose the application service provider mode.Supported by the National High-Tech. R&D Programs for CIMS, "Development and Applications of Networked Manufacturing System for Special Economic Regions in Zhejiang Province" (Grant No. 2002AA414070), we carried out deeper research on the key technologies for ASP-based networked manufacturing system.In the 1st chapter, the naissance, the definition, the research status and the significance of networked manufacturing were summarized and expatiated, and the key problems in the architecture and fulfillment of networked manufacturing system were analyzed. Finally, we proposed the research target and main content of this dissertation based on the project.In the 2^nd chapter, the grid-based architecture of networked manufacturing system was studied. We analyzed the relative merits of current architecture, and nailed down the target of the design of architecture. Then we proposed a grid-based architecture for networked manufacturing system by integrate the grid architecture and networked manufacturing system's architecture, we called it as manufacturing grid architecture. The manufacturing grid architecture absorbed the five-level framework of grid and the grid services idea, and integrated many supporting toolboxes and protocols of Globus, which is a helpful exploration to the development of networked manufacturing system.In the 3rd chapter, the Application Service Provider (ASP) based implementing mode was studied. Firstly, the implementing guideline of networked manufacturing was introduced, and then the outsourcing mode and ASP mode were compared. Based on that, we provided the ASP-based implementing mode for networked manufacturing system. This mode includes an ASP relationship graph for networked manufacturing and an ASP charging model, which was constituted according with some factors such as user classes, user scale, service style, frequency of service use, and resource occupancy and so on. The ASP-based model will give good instruction to systemimplementation, and can be expanded to other special economic regions in Zhejiang Province.In the 4th chapter, the integrated user access control model was studied. We characterized the security issues in ASP-based networked manufacturing system, especially the issue of the user access control. Then the typical methods of access control were introduced, which include Discretionary Access Control (DAC), Mandatory Access Control (MAC), Role-Based Access Control (RBAC), Task-based access control (TBAC), Coalition-Based Access Control (CBAC) and relationship-driven access control (RDAC) and so on. Based on that, we provided an integrated user access control model, which was composed of RBAC, TBAC, RDAC and CBAC. This model mainly includes the reference model and process model. Furthermore, we defined the elements and their relationships of this model, and gave the expressions of constraints authorization. Finally, we proposed a XACML-based access control markup language for networked manufacturing system.In the 5th chapter, the performance analysis and capacity planning for ASP site servers based on modeling the user behaviors using the multi-class queuing network. Firstly, we use the customer state transform model to characterize the functions and their relationships in ASP site, and found the...