Accession Number:

ADA220147

Title:

A Comparison of a Relational and Nested-Relational IDEF0 Data Model

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1990-03-01

Pagination or Media Count:

187.0

Abstract:

This thesis develops an abstract data model of a particular computer aided software engineering CASE methodology, and compares the query complexity, database size, and speed of query execution of a relational database management system DBMS implementation of the methodology with a nested- relational DBMS implementation of the same CASE methodology. In particular, the thesis considers the Unites States Air Force Integrated Computer Aided Manufacturing ICAM programs subset of Rosss Structured Analysis SA language called ICAM Definition Method Zero IDEFo. Ingres Corporations relational DBMS, Ingres, is the implementation media for the relational version. The University of Wisconsins extensible database, Exodus, is the implementation media for the nested-relational version. The thesis provides background information on the development of CASE methodologies and the development of database management systems. Additionally, it provides an overview of the IDEFo analysis language, and the Exodus extensible DBMS.

Subject Categories:

  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE