G. Coulouris, J. Dollimore, Protection of Shared Objects for Cooperative Work, (internal note), Queen Mary & Westfield college, Mile End Road London E1 4NS, Janurary 1995. Home/Search Document Details and Download
Summary Related Articles Check |
This paper is cited in the following contexts:
Access Control Model for Groupware Applications - Kanawati, Riveill (1995) (2 citations) (Correct)
....determines whether the right A granted over O is positive or negative. Negative rights are introduced in order to ease access right specification [9] O can be an individual object or a group of objects. An access right A is expressed in terms of generic operations allowed on the shared objects [4]. Generic operations allow to specify access rights independently of the used applications. A matching function should, however, provided in order to match generic operations to specific operations defined on the objects. Three basic groups of generic access rights are required: Manipulation ....
....we propose. We believe that the use of capabilities is more natural in the context of groupware applications where the human user is at the center of the application and where the access rights should be driven from his status rather than the object one. A task centered approach is adopted in [4]. Roles are task related. Objects manipulated in the context of a task are grouped according to the identity of the role that created the object. Each task is associated with security templet which is a sort of an access matrix that specify, in terms of generic operations, what operations a role R ....
G. Coulouris, J. Dollimore, Protection of Shared Objects for Cooperative Work, (internal note), Queen Mary & Westfield college, Mile End Road London E1 4NS, Janurary 1995.
Unknown - (Correct)
....duty rota) Additionally gaining rights can result from negotiation with others in a way that goes beyond simple delegation. We propose an access control framework that will cater for the specification of complex policies. This work extends the task oriented framework of Coulouris and Dollimore [CD94]. Central to our work is a proposed format for ACLs. First we have facilitated access to an object state in an ACL through its methods. This extra information coupled with the identities and roles of the principals attempting access can allow a greater range of policies to be expressed. Secondly ....
Coulouris G, Dollimore J "Protection of Shared Objects for Cooperative Work" TR 703, Department of Computer Science, Queen Mary and Westfield College, August 1994.
Online articles have much greater impact More about CiteSeer.IST Add search form to your site Submit documents Feedback
CiteSeer.IST - Copyright Penn State and NEC