Noise to Constant Sheet

The Noise to Constant Sheet is a tool for organizing and prioritizing effort in an improvement project. The first step to creating a consistent, correct output of a process is to reduce variation. This form lists the noise in a process (the randomness or uncontrolled aspects) and asks teams to identify ways to make the output more constant. This noise is often identified during the waste walk, or from a cause and effect diagram.

Once the output is consistent, the process is then adjusted to center on the middle of the specification range.