Accession Number : ADA138012

Title :   Automated Hierarchical to CODASYL (Conference on Data Systems Languages) Database Interface Schema Translator.

Descriptive Note : Master's thesis,

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

Personal Author(s) : Owens,J G

PDF Url : ADA138012

Report Date : 16 Dec 1983

Pagination or Media Count : 223

Abstract : An interactive hierarchical to CODASYL schema translator was designed and implemented with the goal of taking a System 2000 (hierarchical) schema as input and producing an equivalent IDMS (CODASYL) schema, storage schema (DMCL), and subschema. In addition, this system is to serve as part of an entire System 2000 to IDMS database translator system. This thesis effort includes an analysis of the hierarchical and CODASYL models, an analysis of the System 2000 implementation of the hierarchical model, an analysis of the IDMS implementation of the CODASYL model, Data Flow Diagrams for the general hierarchical to CODASYL schema translator, structure charts for the System 2000 to IDMS schema translator, translator source code, and data dictionary. (Author)

Descriptors :   *Data bases, *Data management, Hierarchies, Network flows, Algorithms, Translators, Interfaces, User needs, Formats, Computer programming, Programming languages, Systems engineering, Requirements, Flow charting, Output, Computer printouts, Theses

Subject Categories : Administration and Management
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE