支持联邦认证的标准化医学网格研究实现

摘要

This article aims at analyzing the design of a data model based on DICOM standard, and exchanging the data in DICOM standard manner totally in MEDIWSGrid project. Based all this on, a grid middleware on DICOM was build.The grid system has also realized federal authentication and authorization with distributed services. It is concluded that the grid could enable accessing multi-institutional resources with much more securing, more reliable, more generalization and more flexible self-adapting ability in the complexity and uncertainty situation,%在网格项目MEDIWSG rid设计中采用了基于DICOM标准的数据模型和数据交换方法,在此基础上构建了遵循DICOM标准的网格中间件,并以分布式服务的方式实现了联邦的认证与授权机制,从而增强了跨多机构边界访问资源的安全性、可靠性、通用性及对虚拟组织复杂变化的更灵活的自适应能力.