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- W2113174018 abstract "This article presents a survey of authorisation models and considers their ʻ fitness-for-purpose ʼ in facilitating information sharing. Network-supported information sharing is an important technical capability that underpins collaboration in support of dynamic and unpredictable activities such as emergency response, national security, infrastructure protection, supply chain integration and emerging business models based on the concept of a ʻ virtual organization ʼ. The article argues that present authorisation models are inflexible and poorly scalable in such dynamic environments due to their assumption that the future needs of the system can be predicted, which in turn justifies the use of persistent authorisation policies. The article outlines the motivation and requirement for a new flexible authorisation model that addresses the needs of information sharing. It proposes that a flexible and scalable authorization model must allow an explicit specification of the objectives of the system and access decisions must be made based on a late trade-off analysis between these explicit objectives. A research agenda for the proposed Objective-Based Access Control concept is presented." @default.
- W2113174018 created "2016-06-24" @default.
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- W2113174018 date "2010-06-02" @default.
- W2113174018 modified "2023-09-25" @default.
- W2113174018 title "Authorization Models for Secure Information Sharing: A Survey and Research Agenda" @default.
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- W2113174018 doi "https://doi.org/10.22042/isecure.2015.2.2.2" @default.
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