Arguably, the most frequently asked question from an engineer is: 'When will this be done?' And yet in our engineering principles document we stipulate that 'we don’t do fixed time/fixed scope work'. No wonder, this is one of the most frequent questions that different parts of our organization are asking about: 'How can we make an agreement or sign a contract if we don’t have a fixed point in time when we can all agree that something will be ready for our clients?'