Accession Number : ADA195852

Title :   Integrating Distributed Homogeneous and Heterogeneous Databases: Prototypes. Volume 3.

Descriptive Note : Final rept. Sep 86-Jan 88,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s) : Gupta, Amar ; Madnick, Stuart

PDF Url : ADA195852

Report Date : Dec 1987

Pagination or Media Count : 220

Abstract : This volume discusses key issues relating to distributed databases, and presents alternate methods for integrating them together. It is divided into four parts. The first part, Evolution Towards Strategic Applications of Databases Through Composite Information Systems, divides applications into four categories: intercorporate, inter-divisional, inter-product, and inter-model. The second part, Distributed Homogenous Database systems: A Comparison between Oracle and Ingres, compares commercial products in terms of the levels of transparency and independence supported by them. The third part, Achieving a Single Model for Integrating Heterogenous Databases attempts to come up with a single unified modified that encompasses both the database issue and the communication issue. In the communication area, there are two types of standards: connection-oriented and connectionless. In the database area there are multiple standards suited for different environments. The fourth part, A Technical Comparison of Distributed Heterogenous Database Management Systems, describes eight systems being developed around the world. Because of the added complexity involved in translating between multiple systems and multiple data models, distributed heterogenous database systems are more complex than equivalent homogenous ones. While all of these eight systems are able to do global retrieves, their ability to perform global updates and other capabilities is varied. Keywords: Knowledge based integrated information systems engineering (KBIISE). (kr)

Descriptors :   *DATA BASES, *INTEGRATED SYSTEMS, *PROTOTYPES, COMMERCE, COMMUNICATION AND RADIO SYSTEMS, COMPARISON, DATA MANAGEMENT, DISTRIBUTED DATA PROCESSING, DISTRIBUTION, HETEROGENEITY, HOMOGENEITY, INFORMATION SYSTEMS, MODELS, STANDARDS, STRATEGIC ANALYSIS

Subject Categories : Computer Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE