Instance orientation is an approach for designing and programming software systems. It addresses a limitation of current software architectures: it allows multiple higherlevel vie...
Abstract. We consider the problem of developing an abstract metamodel of access control in terms of which policies for protecting a principal's private information may be spec...
Abstract This paper examines the use of a simulator to explore process interaction in Unix. The simulator allows instructors to trace through a variety of programs and to show how ...
Auditing the changes to a database is critical for identifying malicious behavior, maintaining data quality, and improving system performance. But an accurate audit log is a histor...
This paper describes PayCash, an Internet payment system that was designed to offer strong security and privacy protection. This system is based on the concept of electronic cash,...