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Data Accuracy and Precision

Error, Accuracy, and Precision, Kenneth E. Foote and Donald J. Huebner, The Geographer's Craft Project, Department of Geography, University of Colorado at Boulder

A MUST READ - Sections include: The Importance of Error, Accuracy, and Precision; Some Basic Definitions; Types of Error; Sources of Inaccuracy and Imprecision; The Problems of Propagation and Cascading; Beware of False Precision and False Accuracy; The Dangers of Undocumented Data; References and Further Readings; Study Questions


Scale, Accuracy, and Resolution in GIS, British Columbia Ministry of Environment, Lands & Parks


Map Accuracy Standards, USGS


Managing Error, Kenneth E. Foote and Donald J. Huebner, The Geographer's Craft Project, Department of Geography, University of Colorado at Boulder


These explains the difference between these accuracy and precision in general terms: