325 search results - page 1 / 65 » A Model of Methods Access Authorization in Object-oriented D... |
DOOD
1995
Springer
13 years 8 months ago
1995
Springer
Abstract. A simple model for method-based authorization is defined and an algorithm is presented for testing in compile-time whether a given database schema violates authorization...
TKDE
1998
13 years 4 months ago
1998
—We present a new access method, called the path dictionary index (PDI) method, for supporting nested queries on object-oriented databases. PDI supports object traversal and asso...
MDM
2001
Springer
13 years 9 months ago
2001
Springer
We advocate the use of agents to model a system that allows us to integrate and protect information stored in both mobile and fixed devices, while trying to preserve a consistent a...
VLDB
1995
ACM
13 years 8 months ago
1995
ACM
Query processing is one of the most, critical issues in Object-Oriented DBMSs. Extensible opt,imizers with efficient, search strategies require a cost model to select the most eff...
TACAS
1999
Springer
13 years 9 months ago
1999
Springer
We present a theorem-prover based analysis tool for object-oriented database systems with integrity constraints. Object-oriented database specifications are mapped to higher-order...