Hei, Benedicta,
Jeg fant dette på nettet. Kanskje det hjelper deg på vei?
Six sigma concepts
Six sigma is a statistical concept of the outcome where the undesirable outcome or the out of specifications outcome is brought to fewer than 3.4 per million events. If we actually check this number on the Gaussian curve of normal distribution, we find that six sigma corresponds to 0.002 per million. The limit of 3.4 per million is arrived at by accepting the possibility of total shifting of process mean by 1.5 standard deviations in either direction. This converts to 4.5 sigma and gives us the figure of 3.4 per million. To achieve this level of perfection the organization has to critically and factually look at each and every aspect of the processes that make the whole system. The comparison between three-sigma level and six sigma will highlight this problem better. In a ten-step process a three sigma level functioning shall lead to 26674 defects!
—– Original Message —–
From: Benedicta Windt
To: O-ringen
Sent: Friday, March 07, 2003 2:33 PM
Subject: SPM: Sigma?
Hei igjen!
Jeg trenger hjelp, jeg også:
I en oversettelse (en ny av disse hersens blir en bedre leder-bøkene…) støter jeg på følgende:
Expertise includes six sigma, lean systems methodologies, process management, process improvement osv. osv
Six sigma????
Jeg vet at det er fredag i dag, men likevel…
Hilsen Benedicta