| Summary: | 碩士 === 國立暨南國際大學 === 資訊管理學系 === 93 === Access control mechanism is a basic and important function for information systems. It rules user whether he or she can access an object. The users who are authorized can access to specific data. On the other hand, the unauthorized users are not allowed to access data in a system to avoid abusing of information. In this thesis, we integrate object level and object status with the task-role-based access control, and we use design patterns of object-oriented in the system design. By introducing the object status into the access control mechanism, we can control object based on its status. Finally, we apply this mechanism to an online authoring and publishing system of multimedia digital museum to assure the digital content is correct and appropriate.
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