Title :
MORE: an object-oriented data model with a facility for changing object structures
Author :
Tsuda, Kazuyuki ; Yamamoto, Kensaku ; Hirakawa, Masahito ; Tanaka, Minoru ; Ichikawa, Tadao
Author_Institution :
IBM Tokyo Res. Lab., Japan
fDate :
12/1/1991 12:00:00 AM
Abstract :
An object-oriented data model, MORE, in which the database specification facilities have been extended so that users can specify an object with various structures is presented. The structure of an object is changed by passing messages. MORE also provides a classtype, a user-defined type for classes with similar structures, in order to simplify the specification of class descriptions. The system generates operations useful for the classes by referring to a corresponding classtype. A prototype system and an example application are described
Keywords :
data structures; object-oriented databases; MORE; class descriptions; classtype; database specification; message passing; object structures; object-oriented data model; user-defined type; CADCAM; Computer aided instruction; Computer aided manufacturing; Costs; Data models; Database systems; Object oriented databases; Object oriented modeling; Probes; Relational databases;
Journal_Title :
Knowledge and Data Engineering, IEEE Transactions on
