By: Lean Math with Mark Hamel
05/15/2013
Every part every interval, also known as EPEI or EPEx, represents the frequency that different parts are produced or services provided within a fixed repeating schedule. This fixed repeating schedule is often graphically portrayed, for training purposes and as a scheduling visual control, as a wheel, with the different products represented by alphas (A, B, C) and the wheel indexed clockwise to follow the intended sequence.