Pegasus: a system for seamless integration of heterogeneous information sources

Author

Ahmed, R. ; DeSmedt, P. ; Kent, W. ; Ketabchi, M. ; Litwin, W. ; Rafii, A. ; Shan, M.-C.

Author_Institution

Hewlett-Packard Lab., Palo Alto, CA, USA

fYear

1991

fDate

Feb. 25 1991-March 1 1991

Firstpage

128

Lastpage

136

Abstract

Pegasus, a heterogeneous multidatabase management system that is under development, is described. The goal of the system is to provide facilities for applications to access and manipulate multiple autonomous heterogeneous object-oriented, relational, and other information systems. Pegasus defines a common object model for unifying the data models of the underlying systems. The data language of Pegasus allows transparent as well as explicit access to multiple information systems in a single declarative statement. The Pegasus architecture is described, and attention is given to data integration and query processing in Pegasus.<>

Keywords

database management systems; information retrieval; multimedia systems; Pegasus; common object model; data integration; data language; data models; declarative statement; heterogeneous information sources; information systems; multidatabase management system; object-oriented; query processing; relational; seamless integration; Data models; Image databases; Iris; Job shop scheduling; Laboratories; Management information systems; Milling machines; Object oriented databases; Object oriented modeling; Relational databases;

fLanguage

English

Publisher

ieee

Conference_Titel

Compcon Spring '91. Digest of Papers

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-8186-2134-6

Type

conf

DOI

10.1109/CMPCON.1991.128796

Filename

128796