1140 search results - page 40 / 228 » A Purpose-Based Access Control Model |
IEEEMSP
2002
IEEE
14 years 22 days ago
2002
IEEE
Abstract—Traditionally, random access protocols have been designed and studied by assuming simple models for the physical layer. We introduce a reception model that incorporates ...
DEXAW
1998
IEEE
14 years 2 days ago
1998
IEEE
This paper presents a first step towards a security model that defines access control for logical document structures. el benefits from roles to abstract from users and from secur...
SACRYPT
2005
Springer
14 years 1 months ago
2005
Springer
In a hierarchical structure, an entity has access to another if and only if the former is a superior of the later. The access control scheme for a hierarchy represented by a partia...
SIGMOD
2006
ACM
14 years 8 months ago
2006
ACM
The current SQL standard for access control is coarse grained, in that it grants access to all rows of a table or none. Fine-grained access control, which allows control of access...
JIIS
2002
13 years 7 months ago
2002
: Workflow Management Systems (WfMSs) are used to support the modeling and coordinated execution of business processes within an organization or across organizational boundaries. A...