Our Products/Services
Data Validation: Independent Testing to Ensure Spatial Accuracy in Your GIS Data Set

CompassData can evaluate the accuracy of an existing GIS data set by taking measurements in the field and recording attribute data. Data Verification, also known as "ground truth," is the best way to ensure that your existing data set is complete and accurate. We can take your existing GIS data and design a test to provide independent verification of the quality of your data including:

  • Spatial accuracy
  • Feature/attribute accuracy
  • Route accuracy for GPS navigation applications

EXAMPLE:
"True cell tower location is 136 meters off."

NGS Accuracy Validation:

CompassData uses National Geodetic Survey monuments (and their international counterparts), re-surveying monuments on a regular basis to ensure our equipment is calibrated correctly and that the QA/QC for our clients is accurate. Find out more about the National Geodetic Survey mission to improve the National Spatial Reference system, CLICK HERE.