Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Performance Evaluations



Steven D. Phillips


The subject of coordinate measuring machine (CMM) evaluation is a broad an multifaceted one. The theme of this chapter is the evaluation of CMM measurement uncertainty which is central to the concept of traceability. This chapter elucidates the sources of uncertainty and discusses methodologies of how CMM performance an be quantified. This naturally leads to a review of various national and international standards regarding CMM performance evaluation. The chapter ends with a discussion of methods that users can consider when estimating CMM measurement uncertainty. This information will aid CMM users and purchasers when evaluating generalized claims made regarding CMM accuracy.
Chapter 7 in: CMMs & Systems, John A. Bosch, Editor
Publisher Info
Marcel Dekker, Inc., New York, NY


Phillips, S. (1995), Performance Evaluations, Marcel Dekker, Inc., New York, NY (Accessed July 24, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created January 1, 1995, Updated February 19, 2017