摘要： 针对工作流访问控制灵活性和任务分配动态性较差的问题，提出一种新的工作流访问控制模型，使角色和用户在建模和实例两级实现基于任务的工作流权限管理，将建模阶段的权限管理方案作为模板，工作流实例继承该模板并进行个性化设置。设计工作流访问控制模型的用户分配原则，并提出一种基于繁忙因子的动态用户分配策略。分析结果表明，该模型能够根据历史执行情况进行动态用户分配，从而提高工作流的执行效率。
关键词:
工作流,
工作流访问控制,
动态用户分配,
繁忙因子,
任务分配依赖,
授权
Abstract: In order to solve the problem of inflexible access control and lack of dynamic task allocation for workflow, this paper presents a new workflow access control model. It integrates both users and roles authorization on workflow tasks in two level of modeling stage and instance stage, and also designs dynamic user assignment rules for the model by introducing the load equilibrium-based user assignment strategy on the user busy factor. Analysis result shows that this model can produce dynamic user assignment according to history executive condition, and improve workflow’s executive efficiency.
Key words:
workflow,
workflow access control,
dynamic user assignment,
busy factor,
dependency of task assignment,
authorization
中图分类号:
贠亚利, 韩海晓, 李雅萍. 工作流访问控制模型及动态用户分配策略[J]. 计算机工程, 2013, 39(4): 75-77,81.
YUAN E-Li, HAN Hai-Xiao, LI Ya-Ping. Workflow Access Control Model and Dynamic User Assignment Policy[J]. Computer Engineering, 2013, 39(4): 75-77,81.