Alan Cooper, software designer and programmer, on What’s the ROI of UX?:
Return on investment is a manager’s term. Understanding it, tracking it, and increasing it are a manager’s job, not the practitioner’s. The designer’s job is to design, to make the product effective and desirable. It’s the manager’s job to make sure that money is made from its being desired. And yet, managers continue to ask the practitioners about ROI. When they ask, they aren’t seeking enlightenment. They are expressing their doubts. They are voicing their skepticism. They are building a case against the discipline.