This document describes a procedure for the determination of statistics for estimating the capability or performance of processes, particularly when the of process does not remain in statistical control.

The process results of these quality characteristics are categorized into eight possible distribution types.

The statistical methods described in this document only apply to continuous quality characteristics. They are applicable to processes in any industrial or economical sector.

NOTE            This method is usually applied in case of a great number of serial process results, but it can also be used for small series (a small number of process results).