Some articles on sigma process, sigmas, process, sigma:
... As a result, the number of sigmas that will fit between the process mean and the nearest specification limit may well drop over time, compared to an initial short-term study ... To account for this real-life increase in process variation over time, an empirically-based 1.5 sigma shift is introduced into the calculation ... According to this idea, a process that fits 6 sigma between the process mean and the nearest specification limit in a short-term study will in the long term fit only 4.5 sigma – either because the process mean will ...
Famous quotes containing the word process:
“Science and art are only too often a superior kind of dope, possessing this advantage over booze and morphia: that they can be indulged in with a good conscience and with the conviction that, in the process of indulging, one is leading the higher life.”
—Aldous Huxley (18941963)