362 search results - page 36 / 73 » An access control model for simplifying constraint expressio... |
SACMAT
2006
ACM
14 years 1 months ago
2006
ACM
Delegation of authority is an important process that needs to be captured by any access control model. In role-based access control models, delegation of authority involves delega...
ACSC
2005
IEEE
14 years 1 months ago
2005
IEEE
We present a simple approach for implementing flexible locking strategies in a system of components, which may themselves be composite objects. The approach is flexible in that a ...
JAIR
2007
13 years 7 months ago
2007
In the recent years several research efforts have focused on the concept of time granularity and its applications. A first stream of research investigated the mathematical model...
DATE
2006
IEEE
14 years 1 months ago
2006
IEEE
Scheduling is an important step in high-level synthesis (HLS). In our tool, we perform scheduling in two steps: coarse-grain scheduling, in which we take into account the whole co...
SDMW
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. We investigate the experimental effectiveness of query rewriting over XML security views. Our model consists of access control policies specified over DTDs with XPath e...