Distributed Database Design Tool.

Abstract

This document discusses a simulation design tool for distributed database management systems. The ability to model database transaction processing has been added to an existing communications software testbed. The information architecture used is an extension of the ANSI/SPARC standard three-schema DBMS architecture. This extended architecture was developed by the Honeywell Computer Science Center. This document discusses the standard DBMS architecture, the extended distributed DBMS architecture, the logical transaction model of database operations, and the method of simulating this logical model. Measures of data management effectiveness are also discussed. These algorithms, called 'global schemas' and 'local schemas', are unique to distributed DBMSs. These govern the location, correlation, storage, retrieval, and deletion of multiple data copies. A distributed DBMS relies on the service of a communications system to transmit both control information (e.g., 'read' or 'write') and data. The test and evaluation methodology allows the distributed DBMS to be modeled and tested together with the underlying communications system in order to allow these systems to be tuned to each other.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1985
Accession Number
ADA153760

Entities

People

  • T. Bentson

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Availability
  • Command And Control
  • Communications Protocols
  • Computer Science
  • Computers
  • Computing System Architectures
  • Consistency
  • Data Management
  • Data Storage Systems
  • Database Management Systems
  • Databases
  • Measures Of Effectiveness
  • Network Architecture
  • Simulations
  • Test And Evaluation

Fields of Study

  • Computer science
  • Engineering

Readers

  • Database Systems and Applications