Hering, FranzMessaoud, AmorWeihs, Claus2004-12-292004-12-292004http://hdl.handle.net/2003/1965310.17877/DE290R-15676For the design of most multivariate control charts, it is assumed that the observations follow a multivariate normal distribution. In practice, this assumption is rarely satisfied. In this work, a distribution-free EWMA control chart for multivariate processes is proposed. This chart is based on sequential rank of data depth measures.enUniversität Dortmund000report