Decision Rules and Risk Analysis

Abstract

Measurement uncertainty has important economic consequences for calibration and inspection activities and is often taken as an indication of the quality of a test laboratory. Smaller uncertainty values are generally of higher value. In industry decision rules employed in accepting and rejecting products are based on the measurement uncertainty budget of the related characteristics of the products. Conformity assessment based on the product specification and the measurement evaluation is an important part of the industrial quality assurance of manufactured products and for the stability of production processes. The aim of this paper is to describe the relationship between the conformance zone and the acceptance zone and to address the problem of determining acceptance limits that define the boundaries of the acceptance zone.