Data Integrity and Future Systems

Data Integrity Limitations in Highly Secure Systems

We discuss a class of computer/network architectures that supports multilevel security while utilizing commercial-off-the-shelf (COTS) workstations and COTS productivity software applications. We show that a property of these architectures is that, while supporting multilevel confidentiality policies, they do not generally support partially ordered integrity policies: specifically, these archit...

The integrity of serial data highway systems

Data Integrity Threats and Countermeasures in Railway Spot Transmission Systems

Modern trains rely on balises (communication beacons) located on the track to provide location information as they traverse a rail network. Balises, such as those conforming to the Eurobalise standard, were not designed with security in mind and are thus vulnerable to cyber attacks targeting data availability, integrity, or authenticity. In this work, we discuss data integrity threats to balise...

Future Trends in Expert Data Base Systems

In this paper we discuss how we see the capabilities of DBMSs evolving over the next several years to meet the needs of expert data base applications. We also present some of the research thrusts which we see as important that appear to be receiving insufficient attention in the research community.

Future Trends in Data Base Systems

This paper discusses the likely evolution of commercial data managers over the next several years. Topics to be covered include: Why SQL has become an intergalactic standard. Who will benefit from SQL standardization. Why the current SQL standard has no chance of lasting. Why all data base systems will be distributed soon. What new technologies are likely to be commercialized. Why vendor indepe...