Abstract
This study concerns the use of r and Q control charts based on data
depth to control process involving multivariate quality measurements.
In this paper, firstly the concept of data depth is introduced in order
to construct quality control chart structures, the characteristics of data
depth are given and statistics based on this concept are obtained. Fol-
lowing this, the structures and interpretations of mainly nonparametric
r and Q control charts are explained for the Mahalanobis depth measure
used in statistical quality control by means of an example.