An Overview of the Preliminary Design of SDD-1: A System for Distributed Databases.

Abstract

SDD-1, A System for Distributed Databases, is currently being designed and implemented by Computer Corporation of America. SDD-1 is composed of a collection of datamodules which may be dispersed geographically and which are assumed to communicate over channels which may vary in bandwidth and delay. Also, the system supports redundant databases, meaning that portions of databases may be stored at two or more datamodules in order to improve the reliability and efficiency of database operations. This paper presents a brief overview of several key facets of SDD-1. These include: the system architecture, the data distribution concepts used by the system, SDD-1's approach to directory management, the method employed for efficiently handling updates to redundantly stored data, and SDD-1's method for efficiently retrieving data which is dispersed at distant datamodules.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1977
Accession Number
ADA125163

Entities

People

  • J. B. Rothnie
  • Nathan A. Goodman

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Artificial Intelligence
  • Case Studies
  • Communication Channels
  • Computations
  • Computer Science
  • Computers
  • Consistency
  • Corporations
  • Database Management Systems
  • Databases
  • Directories
  • Networks
  • Redundancy
  • Relational Databases
  • Reliability
  • Software Development
  • Storage

Readers

  • Database Systems and Applications
  • Radio communications and signal processing.