We provide a compact survey and brief interpretations and comments on some 170 publications on process capability indices which appeared in widely scattered sources during the years 1992 to 2000. A...

Process capability indices- a review. 1992–2000

Capability indices compare the actual performance of a manufacturing process to the desired performance. In practice these indices are estimated using sample data, often with quite small sample sizes. Thus, it is of interest to obtain confidence limits ..

Confidence Bounds for Capability Indices

This is the introductory article in a special issue of the Journal of Quality Technology devoted to the topic of process capability analysis. Statistical issues generated by the current use of process capability indices are outlined. The contributors of..

Recent Developments in Process Capability Analysis

Introduces a process capability index which indicates the incapability of a process to meet its specifications. This incapability index is obtained by a transformation of the C*pmindex, and it is more informative than C*pm. This transformation allows one to separate information concerning the process variation from information concerning the departure from the process target. As a result, departure from the process target can be assessed without process variation, and vice versa. Presents a number of practical estimators and confidence bounds (intervals).

A process incapability index

A new process capability index is proposed that takes into account the location of the process mean between the two specification limits, the proximity to the target value, and the process variation when assessing process performance The proposed index is compared to other indices on several properties The proposed index is estimated based on a random sample of observations from the production process when the process is assumed to be normally distributed The 95% lower confidence limits for the proposed index are derived for given sample sizes and its estimates

A study of a new process capabily index

This paper shows that under general conditions, the distributions of the estimates of the process capability indices Cp, Cpk and Cpm, are asymptotically normal.

Z. Xiong

Papers

On the asymptotic distributions of some process capability indices

On the asymptotic distributions of some process capability indices.