“In almost every case there are stakeholders who are moved by quantitative data (say the percentage of phone calls that could be avoided.) There are also other stakeholders who connect with qualitative human stories. The magic really happens when you offer both types of evidence. Telling the stories, and backing them up with data points for the cost or the impact of what is happening to people, this is evidence with impact. When you make it real for everyone, you can more effectively catalyze change.”
Also, a sort of case study of improving design in state government.
Original source: Without a formal mandate