原因是它导致以过于简单、僵硬的任务为中心的应用模型(从今天的BPMS中就可看到)。
The reason is because it leads to simplistic and rigid task centric application models (as we can see in BPMSs today).
网格环境下基于移动代理的两级环调度模型主要由网格任务管理中心、网格资源节点、网格用户、用户作业组成。
A two-level-loops scheduling model, based on mobile agent in grid environment, is composed of a grid task management center, grid resource nodes, grid users, and jobs.
基于任务的授权控制（TBAC）则是以任务为中心，并采用动态授权的主动安全模型。
Task based access control (TBAC) is an initiative security model, where task is focus of work and dynamic authorization is used.
基于任务的访问控制模型是一种以任务为中心，并采用动态授权的主动安全模型。
Task based Access Control Model is task centered and offers dynamic authorization , so it belongs to the active security model.
基于任务的访问控制模型是一种以任务为中心，并采用动态授权的主动安全模型。
Task based Access Control Model is task centered and offers dynamic authorization , so it belongs to the active security model.
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