National Center for Geographic Information and Analysis
Unit 46 - Managing Error
- Author(s): Unit 46, CC in GIS
- National Center for Geographic Information and Analysis
- Editor(s): Goodchild, Michael F.
- Kemp, Karen K.
- et al.
This unit discusses several aspects of managing error in spatial databases. It begins with a hypothetical example of a routing problem that is used to demonstrate the process of error analysis and sensitivity analysis in a modeling exercise. Sources of artifacts in raster and vector data, and strategies to avoid them, are presented, and methods for storing accuracy information in a database are discussed.