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A secure service-based collaborative workflow system

机译:基于安全服务的协作工作流系统

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This paper addresses a need to control collaborative access to shared web service resources (grid services) in workflows. The workflows are executed by users from different organisations who act in roles in a business process. These workflows execute services across organisations, which create service instances that can be accessed by different users during the workflow lifetime. Controlling collaborative access to service instances is difficult when the users are from distributed organisations and the access changes during the service instance lifetime. Current access control techniques provide constraints for users mapped to roles and the roles assigned to tasks. However, we extend this by proposing a framework to include collaborative access to service instances. These service instances execute workflow tasks and are temporary assets for collaborative use. The Distributed Aircraft Maintenance Environment (DAME) project is used to demonstrate a collaborative portal and Workflow Management System (WFMS) in which teams of users from different organisations share grid service instances. After evaluation, the resulting proposed solution uses a dynamic Workflow Team Policy to maintain users in roles and record service instances as temporal business assets.
机译:本文提出了在工作流中控制对共享Web服务资源(网格服务)的协作访问的需求。工作流由来自不同组织的用户执行,这些用户在业务流程中扮演角色。这些工作流跨组织执行服务,这些服务创建了可以在工作流生存期内由不同用户访问的服务实例。当用户来自分布式组织并且访问在服务实例生存期内发生更改时,控制对服务实例的协作访问非常困难。当前的访问控制技术为映射到角色的用户和分配给任务的角色提供了约束。但是,我们通过提出一个框架来扩展此范围,以包括对服务实例的协作访问。这些服务实例执行工作流任务,并且是用于协作使用的临时资产。分布式飞机维护环境(DAME)项目用于演示协作门户和工作流管理系统(WFMS),其中来自不同组织的用户团队共享网格服务实例。经过评估,最终提出的解决方案使用动态工作流程团队策略来维护用户角色并将服务实例记录为临时业务资产。

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