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	Task-activity based access control for process collaboration environments
	Yahui Lu ; Li Zhang ; Jiaguang Sun
	2010-10-12 ; 2010-10-12
关键词	Practical/ authorisation business process re-engineering software architecture Web services workflow management software/ task-activity based access control process collaboration environments collaborative systems security mechanism Web services workflow technologies business process SOAP based interaction protocol workflow management system XACML specification WS-BPEL specification service-oriented architecture/ C7104 Office automation C6110B Software engineering techniques C6130S Data security C6150N Distributed systems software
中文摘要	Collaborative systems enable organizations to communicate, interact and cooperate with each other to achieve their business goals. Access control is an important security mechanism for organizations to protect their resources in collaborative environments. Many access control models and mechanisms have been proposed for collaborative systems. However, under the new collaborative paradigm based on Web services and workflow technologies, some specific access control requirements should be addressed to support the various process collaboration patterns. In this paper, we present a task-activity based access control (TABAC) model for process collaboration environments. In TABAC, business process is composed by activities and dynamic permissions are related to tasks. Task permissions can be dynamically assigned to processes during the interaction of activities. A SOAP based interaction protocol is also proposed to transmit task permissions between processes. Finally, we describe the implementation of TABAC model in workflow management system which conforms to the XACML and WS-BPEL specifications. [All rights reserved Elsevier].
语种	英语
出版者	Elsevier Science B.V. ; Netherlands
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82154]
专题	清华大学
推荐引用方式 GB/T 7714	Yahui Lu,Li Zhang,Jiaguang Sun. Task-activity based access control for process collaboration environments[J],2010, 2010.
APA	Yahui Lu,Li Zhang,&Jiaguang Sun.(2010).Task-activity based access control for process collaboration environments..
MLA	Yahui Lu,et al."Task-activity based access control for process collaboration environments".(2010).

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