| This paper proposes a generic relational-database schema that can efficiently accommodate various types of GIS data. The proposed schema complies with the OpenGIS Simple Features Specification for SQL developed by OGC (OpenGIS Consortium) and can be used for any geographic application whose geographic objects are represented based on 2D geometry with linear interpolation between vertices. The generic schema that we propose in this paper makes it possible to automatically generate a relational database schema for any existing or new 2D GIS dataset. This facilitates the migration and deployment of GIS data in well-established relational database environments. Consequently, sharing and integrating GIS data become much more feasible. In addition, since any relational database management system (DBMS) can be used, developing a GIS application system on existing GIS data is facilitated. We verified the proposed schema and automatic schema generation mechanism by developing and testing a relational geographic information system.;Keywords. Geographic Information System, databases, relational databases, schema design. |
