Abstract
In order to protect the sensitive information in collaborative manufacturing grid environment, an access control solution was proposed to satisfy the inherent dynamic natures of the manufacturing grid, including dynamic business flow and system environment. Activity is introduced to encapsulate role and permission. Activity state, activity hierarchy and activity dependence are used to provide dynamic authorization and flexible multi-granularity privilege management, which can get adapted to the dynamic, flexible modern business process. UNIX-like permission can guarantee default minimum read/write/delete permissions. This proposed model can meet the need of manufacturing grid.
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