What are the “S” curves? Each of the above S curves represent a technology platform. Movement up an “S” curve is incremental innovation while stepping down on a lower new “S” curve now, may lead to radical innovation, as the new “S” curve surpasses your existing “S” curve.
The Cost and Performance Y axis, Time on X Axis: If you look at the Y axis you see performance going up and cost coming down. Just as time goes on. In other words over time a particular S curve and technology platform gets improved. This improvement is through factors such as experience, techniques like 6 Sigma, more adoption by customer. The adoption by customer mean higher sales volumes and costs keep going down. However there is a catch for each S curve.