Interaction-Design.org The folks from Interaction-Design.org have just completed their newest chapter: “Disruptive Innovation” by Clayton M. Christensen. This chapter is an excerpt from Dr. Christensen’s 1997 book “The Innovator’s Dilemma: When New Technologies Cause Great Firms to Fail,” published by Harvard Business Press. His newer book, “The Innovator’s DNA: Mastering the Five Skills of Disruptive Innovators,” published in 2011 on Kindle, is a follow up to the ideas in the first book and those expressed in the Interaction-Design.org chapter. Disruptive Innovation The main idea of this chapter can be summed up by Donald A. Norman’s graph (see below). This is a graph of product performance over time — think of “product” is its most expansive form. When the product is first introduced into the market, it might not be “ready for prime time”, as we say — meaning that the product is: difficult to use, or too expensive, or replacing a well-established way of doing things, or has a high learning curve: even difficult to use products can have a shallow learning curve that allows small accomplishments right away by novice users, or requires a large ecosystem of other products and services that are not widely available: think electric cars…