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Enterprise ERP system and the rational use of the fully integrated enterprise management, information technology has become critical to the success of the enterprise. However, the ERP system is an integrated, multi-user sharing system, and how effective management of user competence are not overlooked safety issues. An outstanding competence management module users can effectively manage the entire software system, and coordinate the roles of all users, the relationship between authority. The ERP system for the allocation of competence of users, providing a role-based access control distribution strategy. This allocation strategy to the actual status of enterprises and enterprises of the interrelationship between the business sector, the development of systems with specific roles more consistent together. Eventually made an improvement of the access control model based on the role of the models to facilitate reunification, and the roles and responsibilities of management positions u