Accession Number : ADA329145

Title :   Distributed System Control.

Descriptive Note : Final rept. Jun 94-Mar 96,

Corporate Author : LOCKHEED MARTIN CORP CAMDEN NJ ADVANCED TECHNOLOGY LABS

Personal Author(s) : Berea, James A. ; Bhangava, Bharat ; Geigel, Tom ; Kim, Kane ; Kim, Jus-eak

PDF Url : ADA329145

Report Date : JUN 1997

Pagination or Media Count : 70

Abstract : Global control in distributed systems had not been well researched. Control had only been addressed in a limited manner, such as for data-update consistency in distributed, redundant databases or for confidentiality controls (access control authentication). The purpose of control is to allocate the system's resources to the most important objective. The system must manage resources during system operation. Anomalies are conditions that obstruct the system from achieving user objective. Most research had been limited to a single-processor situation; however, research had to extend control to the distributed environment. The predictability of the external environment, communication delays data accuracy (state information) and anomalies, and stability of decision algorithms constrain global control. The integration of control, which at various levels of granularity, would enable distributed-teleconferencing, and adapt to systems conditions, was investigated.

Descriptors :   *COMPUTER PROGRAMMING, *RESOURCE MANAGEMENT, *CONTROL THEORY, DISTRIBUTED DATA PROCESSING, DEMONSTRATIONS, TEAMS(PERSONNEL), CONFIGURATIONS, QUALITY ASSURANCE, MASS MEDIA, SYSTEMS MANAGEMENT.

Subject Categories : Computer Programming and Software
      Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE