【摘要】 在分析项目管理系统过程模型、组织模型和资源模型的基础上，提出了项目管理系统中全局资源静态访问控制模型和局部资源动态访问模型相结合的新的安全模型，该模型考虑了系统执行的上下文环境，将安全问题方面的注意力从独立系统中静态的主体和客体保护,转移到随着任务的执行而进行动态授权的保护上来。更多还原

【Abstract】 This paper proposes a new security access model based on the analysis of project process model, organization model and resource model, the new method brings the static access control model and dynamic access control model together to control the object access. The models take the system context into account when the object is accessed. It causes people to shift the focus on security issues from the protection of individual objects and subjects in isolated computer system to the protection of dynamical authorization with different task更多还原