Sources of variation six sigma
Apr 11, 2012 Finding Sources of Variation. The process of starting up the fuel feed system was to start the silo feed belt first, the coal feed belt second and the petcoke feed belt last. All belts were to be empty when started. The shutdown process required that the petcoke belt be shut down first, after it was empty.The more you adjust a process to nominal (the center), the more variation you will create. (Also see Quincunx. ) Six elements contribute to variation in a process. Those six elements 5 Ms and on P (or 6Ms) influence variation in all processes manufacturing or not. sources of variation six sigma
The objective in driving Six Sigma performance is to reduce or narrow variation to such a degree that six sigmas or standard deviations can be squeezed within the limits defined by the customers specifications. (Pande) An important part of the Six Sigma model is the measurement phase.
There are different sources of variation. The observed process variation is divided into two main parts, the actual process variation and the measurement variation. Both these variations have a common factor which is the variation within a sample. Also, the actual process variation can be divided into long term process variation and short term process variation. sources of variation six sigmaRating: 4.48 / Views: 718