Accession Number : ADA117990

Title :   Comparative Prediction Methodology for Decentralized DDBMS.

Descriptive Note : Final scientific rept. 1 Apr 81-31 Mar 82,

Corporate Author : WEIZMANN INST OF SCIENCE REHOVOTH (ISRAEL) DEPT OF APPLIED MATHEMATICS

Personal Author(s) : Melman,Myron

PDF Url : ADA117990

Report Date : 30 Apr 1982

Pagination or Media Count : 97

Abstract : As distributed systems grow in size and complexity there is an ever increasing need to construct operating computer models of these systems prior to prototyping or actual system implementation. Simulation of Fully Distributed Processing Systems can entail a most serious modeling and simulation effort. This project deals with the modeling and simulation of Fully Distributed Processing Systems. Two areas of software development, a package directed as a simulation aid to support modularly designed system or nodal algorithmic structures and the model of a distributed multiple-copy data base concurrency control algorithm modularly designed to interface with the simulation support package are treated. The stand-alone Distributed System Simulator, (DISS) is presented in considerable detail to bring out its generality, flexibility and its applicability to a wide range of distributed systems. The algorithm of the SDD-1 Concurrency Control is presented along with simulation results. (Author)

Descriptors :   *Data processing equipment, *Data management, Decentralization, Algorithms, Data bases, Prototypes, Methodology, Computerized simulation

Subject Categories : Administration and Management
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE