| Summary: | Shortcomings of access control strategy in existing information management systems of coal mine were analyzed, and some views were pointed out that basic functions of account control strategy was simple in function and immutable in right during system running, and role-based access control strategy was lack of distinction of system data, which led to difficulty of system development and maintenance. An access control model based on meta-data and role was proposed, which implemented right management of user functions and data through configuring and limiting scope of accessing meta-data. Modular design and development of right management were realized by meta-control which reduced code repetition and logic complexity. The model has been used in a couple of integrated information management systems of coal mine and shows good flexibility and operability.
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