GIS QUALITY ASSURANCE – DATA ACCEPTANCE ... …

Swapan Nag and Brennen F. Sheperd Engineering Systems 355 South Grand Avenue, Suite 3292 Los Angeles, CA 90071-1560 and Thomas Conry County of Fairfax Department of Information Technology, GIS Group 12000 Government Center, Suite 117 Fairfax, VA 22035-0010 GIS QUALITY ASSURANCE data ACCEPTANCE SPECIFICATION & CONTROL ABSTRACT The QUALITY of a GIS model depends on specification of its content and accuracy and the QUALITY control methods used to measure adherence to these standards. Validation of the model involves checking for consistency between planimetric data and their corresponding physical features; cadastral data and source tax maps; adherence to graphics standards; and authentication of attributes for each of the entities. To keep costs reasonable, the checking process is automated to the greatest extent possible, and benchmarks established as to how good is good enough.

GIS data is reviewed for precision and accuracy in conformance to, or deviation from, a predefined standard or specification. The important characteristics that determine a product’s quality are shaped by

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  Data, Quality, Assurance, Acceptance, Gis quality assurance data acceptance

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