A review on multivariate processes capability indices
多元过程能力指数的研究综述

Diagnosing and controlling the multivariate characteristics are hot and difficult topics in the area of modern statistical process control. There is no any effective way to analyze the multivariate process capability, nor is to compute its indices. Four ideas of computing multivariate process capability indices(MPCIs) and the corresponding models are described; some special methods for their computation are also briefly introduced, such as the bootstrap method, and the geometric-distance approach. Finally, a simple comparison and conclusion of these models and methods are made.