Spatial data quality issues have been put in high priority in GIS community as the increasing share and use of geospatial data, especially when Internet technology became the new medium for delivering digital data to its large audience. However, the current lack of error-sensitive functionality has been exposed and found in many GI systems. Thus, to enhance current GIS with quality aware functions and provide users with the geospatial data of adequate quality becomes a big challenge. This paper focuses on improving and supporting the spatial data integrity in field based Mobile GIS. It examines current approaches of ensuring spatial data integrity and proposes a rule-based means for specifying data integrity requirements. Then the quality-aware GIS concept is introduced, and based on that, a geocomputational tool prototype for interpreting integrity rules and performing the error checking in Mobile GIS is developed. Its functionality corresponding to the detailed field data capture scenarios is introduced. This geocomputational tool has a generic architecture, and it is implemented as the extended geospatial web functions to enhance standardized geospatial web services (OGC WFS). Therefore it can also be easily employed by other different quality-aware GIS applications such as data reprocessing, data analyzing and so forth.

Date Published: 3 November 2008
PDF: 12 pages
Proc. SPIE 7143, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 714321 (3 November 2008); doi: 10.1117/12.812602

Published in SPIE Proceedings Vol. 7143:
Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments
Lin Liu; Xia Li; Kai Liu; Xinchang Zhang; Aijun Chen, Editor(s)