Accession Number : ADA298985

Title :   Handling Critical System Requirements in Adaptive Systems.

Descriptive Note : Final technical rept. Apr-Oct 94,

Corporate Author : SRI INTERNATIONAL MENLO PARK CA

Personal Author(s) : Gong, Li ; Lunt, Teresa

PDF Url : ADA298985

Report Date : JUN 1995

Pagination or Media Count : 36

Abstract : Computer systems implementing mission-critical applications typically must be capable of adapting to and responding to events and changes in the operational environment. To accomplish this, a system often will have to make dynamic tradeoffs in meeting its various and often conflicting objectives: for example, security and availability. In this final report, we describe a general framework within which multiple critical system properties can be specified, multiple requirements can be jointly considered, and conflicts can be resolved. We give examples to illustrate how the framework can be useful, and suggest future work on the application of the framework.

Descriptors :   *DATA PROCESSING SECURITY, *CRITICALITY(GENERAL), *SYSTEMS MANAGEMENT, REAL TIME, SPECIFICATIONS, COMPUTERS, DYNAMICS, MISSIONS, ADAPTIVE SYSTEMS, TRADE OFF ANALYSIS, HANDLING, FAULT TOLERANCE.

Subject Categories : Computer Systems Management and Standards

Distribution Statement : APPROVED FOR PUBLIC RELEASE