Service Grid Portal Key Technology Research And Design

Grid computing is the new technology in recent years. Establishing grid system can maximize the comprehensive utilization of the distribution resources (data, computing ability, storage capacity, etc.), and achieve the real resources sharing. However, when facing the rapidly changing of the business requirements of the present's government affair, research and commerce. Dynamically demand for integrated Grid system is urgently needed to deal with the changing needs of the current situation, the traditional individual Grid is unable to meet the demand, Service Grid was considered an effective means to meet these needs, so the research and development for it will gradually become hot. But what is not optimistic is that, for users and managers, in order to facilitate the "access" Service Grid environment, using the Service Grid from the rich application services, managing and maintaining the resources of the servie Grid still is a headache. Service Grid Portal is a good solution to this problem, as it can provide the simple and necessary interface for the user, by using Service Grid.But at present, in building a Grid Portal, only stay on the several large-scale special Grids, which were first proposed and put into practice application, such as Computational Grid, Data Grid etc. And those systems are too big and development complex and difficult to deploy, integrated and updated. On the other side, the newest Service Grid Portal which were proposed in relatively late, still lack of good solution. Therefore, the main study of this paper is the Service Grid Portal.Consider the features of the Service Grid, including wide range of distributed resource, a large number of handling objects and difficult to maintain, and combining the characteristics of Grid Portal design, this paper is designed to be a Service Grid Portal, which is based on Struts framework and MVC pattern(Model—View-Control). Furthermore due to lack of the standare support, paper is proposed to give a new enhanced mutil-framework Service Grid Portal, which is based on mixture patten. Moreover as the importance of security management module of the Service Grid, this paper is also designed to study the way of visiting security of the Service Grid Portal, by give an access controll policy base on role-based and consumer model, accompany with the centralized verification and authorization, and the way of certification management based on Agent using. Lastly, to the quality improvement of Service the...