Renovation Of The Trusted Business Based On Trust Management System In Grid

In grid, the management modes of users are open and distributed. The users' program may contain vicious code, which endangers resources of grid greatly. The application program operates on the platform of grid would be threatened once sharable resources in grid are damaged by vicious code. Simultaneously, in grid which supports resource sharing there are some private nodes. These nodes just use or occupy other nodes'resources but do not provide any resource. Some vicious node may exist to provide fake resources and endeavor to disturb the system's normal performance. The vicious nodes may as well affect the normal environment of grid by providing dishonest feedback, cheating with other nodes and making malign attacks strategically. In grid computing, to accomplish a task needs several entities to participate and cooperate, so establishing a trustworthy relationship with each other is necessary. The trustworthy relationship plays great important role in choosing cooperative partners. To choose a high credit partner can promote the success rate of task accomplishment in grid.In this paper, we propose a business process management method based on trust management system. We propose and implement a resouce selection and allocation mathod based on trust value provided by the trust management system. The approach can get rid of the bad node with malicious behavior in history. We evaluate the impact of trust in a scheduling approach by comparing the failure rate of jobs of trust aware scheduler against trust unaware scheduler such as just choosing the resource stochastic. The performance shows that the failure percentage of jobs gets lower using trust-based scheduler. We also test and verify the business process management method on trust management system.