Martin von Weissenberg explains in his blog post that focus and rapid feedback not only improve software development projects but shorten them dramatically as well. He use an experimental setting to compute the ROI for four different approaches: traditional plan-driven project delivering near the end, an unfocused project with continuous delivery, a focused project with an 80/20 Pareto distribution of value and a focused project with an 80/50 Pareto distribution of value. The results prove that focus and rapid feedback in the form of continuous delivery are game-changer.
