Accuracy vs Precision What you need to know for GISAccuracy Vs Precision.pdfISSUES RELATING TO MODERN GPS SURVEYINGhttp://www.gmat.unsw.edu.au/snap/gps/gps_survey/chap5/556.htm Accuracy and precisionhttp://wiki.gis.com/wiki/index.php/Accuracy_and_precision Error, Accuracy, and Precisionhttp://www.colorado.edu/geography/gcraft/notes/error/error_f.html GIS Data: A Look at Accuracy, Precision, and Types of Errors http://www.gislounge.com/gis-data-a-look-at-accuracy-precision-and-types-of-errors http://www.gislounge.com/spatial-data-quality-an-introduction/