Annotation-based access control for collaborative information spaces

Authors:
Peyman Nasirifard;Vassilios Peristeras;Stefan Decker
Affiliations:
Digital Enterprise Research Institute (DERI), National University of Ireland, Galway (NUIG), IDA Business Park, Lower Dangan, Galway, Ireland;Digital Enterprise Research Institute (DERI), National University of Ireland, Galway (NUIG), IDA Business Park, Lower Dangan, Galway, Ireland;Digital Enterprise Research Institute (DERI), National University of Ireland, Galway (NUIG), IDA Business Park, Lower Dangan, Galway, Ireland
Venue:
Computers in Human Behavior
Year:
2011

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Abstract

Web 2.0 social platforms (e.g., Flickr, YouTube) and Collaborative Working Environments (e.g., Microsoft SharePoint, BSCW) provide Web-based collaborative information spaces which enable common users and/or professionals to work together and share their online resources. Most of these collaborative information spaces provide role-based or group-based, coarse-grained access control policies which cannot successfully cope with the requirements posed by massive and open collaboration. In this paper, we present an annotation-based access control (AnBAC) model supported by a Collaboration Vocabulary (CoVoc) as a more flexible and user-centric access control approach. Based on this, we developed two tools: Uncle-Share is a gadget that provides annotation-based access control and can be equipped with CoVoc for annotating collaborative relationships. Who-With-Whom uses CoVoc to visualize extended social networks in order to help users to select appropriate contacts to grant access to resources.