• John Russo

What is the Difference Between Measured and Represented Accuracy?

Understanding accuracy is the key to success in building documentation


Accuracy seems to be a term that is used quite often when describing what is needed with an Existing Conditions Survey; commonly referred to as an “As-built.” Before we can commit to an accuracy, we must first understand whether the term refers to a measured accuracy or a represented accuracy.


A measured accuracy refers to the accuracy of the actual measurements themselves. In the case of laser scanning, this would be the results achieved in a single scan, or in a set of registered scans. In the illustration provided the red dot