CEN ISO/TS 14253-4:2010

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Relationship between functional limits and specification
  limits
5 How functional limits are determined
6 Specification limits and how specification limits are
  determined relative to functional limits
7 Shape of assumed functional deterioration curve
8 Determining specification limits
9 Alternative basis for decision rules
Annex A (informative) - Relation to the GPS matrix model
Bibliography

ISO 14253-4:2010 outlines the main assumptions behind the theoretically ideal decision rules established in ISO 14253-1. It discusses why these rules have to be the default rules and what considerations should be taken into account before applying different decision rules.ISO 14253-4:2010 applies to all specifications defined in general GPS standards (see ISO/TR 14638), i.e. standards prepared by ISO/TC 213, including workpiece specifications (usually given as specification limits), and measuring equipment specifications (usually given as maximum permissible errors).