Basic HTML version of Foils prepared 7 October 97

Foil 60 Multiversion Approach

From VRML and Use of Databases as backend and Application to GIS ARL Database Tutorial -- February 98. by Krzysztof Walczak
The hierarchy of versions is defined by the version graph
Child version while created inherits all parent's properties - easy creation of new versions
Only differences between parent and child version are stored - no redundancy
Multiple inheritance possible
Propagation of changes made in parent versions

© on Mon Oct 13 1997