About precision and integrity in visual query languages for spatial databases

Author

Favetta, Franck ; Laurini, Robert

Author_Institution

Inst. Nat. des Sci. Appliquees, Villeurbanne, France

fYear

2001

fDate

21-21 April 2001

Firstpage

286

Lastpage

293

Abstract

More and more users of different types have to deal with spatial databases and geographical information systems (GIS). The increasing number of "novice" (non-expert) users in the field of GIS and/or computing crucially require interfaces with a high degree of user friendliness. To meet this requirement, visual languages are seen as precursors. Nevertheless, current visual solutions suffer from different problems. Among them, imprecision and integrity problems are encountered in spatial relations. An extension of an existing model has been proposed which provides a precise topological expressive power for three objects in R/sup 2/. This paper details how this new model can contribute to solve the previous issues in the field of GIS and how it can be integrated into existing visual query languages.

Keywords

data integrity; geographic information systems; query languages; topology; visual databases; visual languages; geographical information systems; integrity; novice users; precision; real plane; spatial databases; spatial relations; topological expressive power; user friendliness; user interfaces; visual query languages; Computational Intelligence Society; Database languages; Formal languages; Geographic Information Systems; Information systems; Power system modeling; Spatial databases; Spatial resolution; Topology; Visual databases;

fLanguage

English

Publisher

ieee

Conference_Titel

Database Systems for Advanced Applications, 2001. Proceedings. Seventh International Conference on

Conference_Location

Hong Kong, China

Print_ISBN

0-7695-0996-7

Type

conf

DOI

10.1109/DASFAA.2001.916389

Filename

916389