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Y=f(X)

Y=f(X)

Most processes are governed by a basic transfer function, Y=f(x). It is pronounced “y equals f of x.” Y is the output, or “dependent variable”. X is the input (or inputs). Essentially, there are some input parameters that affect the output. When you change one of the input variables, you Read more…

Yellow Belt

A “Yellow Belt” designates that a person has been trained to participate in a Six Sigma project. In some rare instances, you may also see the yellow belt used in the Lean community. About the Lean/Six Sigma Belt System Note that there is not a formal governing body that manages Read more…

Yield

Yield is a quality ratio. It is calculated by dividing the number of good pieces of work by the number of pieces of work started and is expressed as a percent. If a process starts work on 100 items, for example, and 92 make it off the end of the Read more…

Yokoten

Yokoten is a Japanese term that loosely translates into “horizontal deployment”. Essentially, it is the spreading of information across the organization. A key point to this is that it is not just the result that is shared, but also the process that led to the result. Most organizations have numerous Read more…