Adaptive Fault Tolerance
Abstract
The objective of the Adaptive Fault Tolerance program is to provide large complex distributed military systems with greater degrees of survivability, and graceful degradation than is currently available. Most research on these systems to date has focused on the management of static threat and environmental conditions. However, many military Battle Management/Command, Control, Communication, and Intelligence systems exist not in a static but in a highly dynamic environment. The dynamics occur along several dimensions such as alternate modes of operation, changing threat type or threat rate, loss of system resources such as communication links or processing assets, and changing network topology and asset configuration. Using static fault tolerance approaches in these systems is inappropriate because system requirements may change as a result of changes along one or more dimensions in the dynamic operating environment. Furthermore, designing a system for worst-case situations in every dimension of conceivable threat is cost prohibitive. An adaptive approach to fault management enables the system to dynamically tailor its fault tolerance/survivability mechanisms to best deal with a changing environment and to apply limited system assets appropriately. Distributed systems, Fault tolerance, Adaptivity, Resource management, Command and control systems.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1994
- Accession Number
- ADA281251
Entities
People
- Len T. Armstrong