基于域的制造网格信任管理策略研究

摘要

To compute and evaluate the recommended trust coming from different domains in manufacturing grid, a domain-based trust management strategy for manufacturing grid is proposed. On the basis domain feature in manufacturing grid, this strategy built a two-layer domain structure of domain to organize the distributed cross-domain cooperation. The trust evaluation within different domains is accomplished by introducing role and cooperative role, and recommendation trust value is deduced by using serial calculation and parallel calculation in D-S theory. It can comprehensively reflect the trust evaluation which is affected by many factors, effectively avoid the phenomenon that single node is overweight or nodes are treated unfairly and achieve the trust value calculation successfully. An application prototype is developed to show the validity and the practicability of the proposed model and algorithm.%为了计算和评价来自制造网格不同域的推荐信任值,提出一种基于域的制造网格信任管理策略.该策略从制造网格的域特征出发,构建一个二层域结构来组织管理分布式跨域的协同操作；通过引入行业角色和合作角色实现不同域的信任评估,利用D-S理论中串联运算和并联运算实现推荐信任的推导.它反映出直接信任评价受多因素影响的性质,避免了推荐资源节点的单节点权值过重和受待遇不公平的现象,实现了信任值计算.模拟实验结果验证了该模型和计算方法的有效性和实用性.