NDLI: A GTRBAC based system for dynamic workflow composition and management

Content Provider	IEEE Xplore Digital Library
Author	Shafiq, B. Samuel, A. Ghafoor, H.
Copyright Year	2005
Description	Author affiliation: Purdue Univ., West Lafayette, IN, USA (Shafiq, B.; Samuel, A.; Ghafoor, H.)
Abstract	In this paper, we propose an architecture for adaptive real-time workflow-based collaborative system. Such a system is needed to support real-time communication and sharing of information among predefined or ad hoc team of users collaborating with each other for the execution of their respective tasks in the workflow. A key requirement for real-time workflow system is to provide the right data to the right person at the right time. In addition, the workflow needs to be reconfigured if a subtask of a workflow cannot be executed within the due time. We use the generalized temporal role-based access control (GTRBAC) model to capture the real-time dependencies of such workflow applications. In addition, support for triggers in GTRBAC allows dynamic adaptation of workflow based on the occurrence of certain events. Such adaptations may include rescheduling of workflow tasks, reassignment of users to scheduled tasks based on their availability and skill level, and abortion of incomplete tasks.
Sponsorship	IEEE Comput. Soc. Tech. Comm. on Distributed Process
Starting Page	284
Ending Page	290
File Size	129441
Page Count	7
File Format	PDF
ISBN	0769523560
DOI	10.1109/ISORC.2005.1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems Access control Air traffic control Object oriented modeling Authorization Collaborative work Job shop scheduling Abortion Distributed databases Government
Content Type	Text
Resource Type	Article

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