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Process capability analysis in multivariate environment

Niavarani, M. R ; Sharif University of Technology

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  1. Type of Document: Article
  2. Publisher: Institute of Industrial Engineers
  3. Abstract:
  4. Different multivariate process capability indices are developed by researchers to evaluate process capability when vectors of quality characteristics are considered in a study. This paper presents two indices referred to as NCpM,and MCpM, in order to evaluate process capability in multivariate environment. The performance of the proposed indices is investigated numerically. Simulation results indicate that the proposed indices have descended estimation error and improved performance compared to the existing ones. These results can be important to researchers and practitioners who are interested in evaluating process capability in multivariate domain
  5. Keywords:
  6. Multivariate normal distribution ; Multivariate process capability index ; Normal distribution ; Production engineering ; Statistical process control ; Control ellipse ; Estimation errors ; Process capabilities ; Process capability analysis ; Quality characteristic ; Quality control
  7. Source: IIE Annual Conference and Expo, 5 June 2010 through 9 June 2010 ; 2010