GIS Dictionary
Definitions for GIS terms related to operations such as analysis, GIS modeling and web-based GIS, cartography, and Esri software.
Now available for purchase: A to Z GIS: An illustrated dictionary of geographic information systems.
Search the GIS Dictionary:
GIS Bibliography
Researching GIS?
Search the GIS Bibliography for a vast index of books, journals, conference proceedings and reports.
ambiguity
See Also:
uncertainty,
vagueness
-
[uncertainty]
In GIS, a state of uncertainty in data classification that exists when an object may appropriately be assigned two or more values for a given attribute. For example, coastal areas experiencing tidal fluctuations may be dry land at some times and under water at other times. Ambiguity may be caused by changeable conditions in reality, by incomplete or conflicting definitions of attributes, or by subjective differences in the evaluation of data. It may also be caused by disputes, as when two parties claim ownership of the same tract of land.
