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Title: Issues in object-oriented data-base schemas

Thesis/Dissertation ·
OSTI ID:5172864

The successful use of data-base management systems in data-processing applications has created a substantial amount of interest in applying data-base techniques to such areas as knowledge bases and artificial intelligence (AI), computer-aided design (CAD), and office information systems (OIS). The practical applications of object-oriented data bases, such as CAD, AI, and OIS require the ability to dynamically make a wide variety of changes to the data-base schema. This process is called schema evolution, for which the author establishes a consistent and complete framework. Based on his framework, the MCC ODBS group implemented a schema manager within the prototype object-oriented data-base system, ORION. On top of the schema manager of ORION, a graphical editor PSYCHO was implemented. A technique is presented that enables users to manipulate schema versions explicitly and maintain schema-evolution histories in object-oriented data-base environments.

Research Organization:
Texas Univ., Austin, TX (USA)
OSTI ID:
5172864
Resource Relation:
Other Information: Thesis (Ph. D.)
Country of Publication:
United States
Language:
English