Browse Prior Art Database

Heirarchical Data Model for a Relational Database based Geographic Information System Disclosure Number: IPCOM000118530D
Original Publication Date: 1997-Mar-01
Included in the Prior Art Database: 2005-Apr-01

Publishing Venue


Related People

Dugan, RF [+details]


Disclosed is a Relational Data Model for a Geographic Information System (GIS) that supports inheritance. The inheritance model is superior to conventional relational models because it recognizes class relationships that exist in GIS. An implementation of the inheritance model is proposed using relational technology. An actual GIS data model is presented. This model provides support for the three major areas in a GIS: spatial data, application development, and administrative tasks.