I did a talk at TechMeetup Aberdeen last week on Failure Demand. You can find the slides on my Interests page, or watch the video when it’s up on the TechMeeup blog site. The basics of Failure demand can be found in a a blog entry by David Joyce, and one of John Seddon’s blog posts. Basically, the story is the same, how to reduce the amount of work that you do which is later found to be not needed: either you built something that wasn’t needed due to miscommunication, or was more than was asked for, or is rework due to bugs, etc. The goal is to always reduce failure demand as it produces no new value for the customer.