“Most of the available maturity models measure the degree to which the agile techniques and tools are deployed. I prefer to look at it from a different angle. First, define what your most important performance indicators are with respect to agility. For instance, time-to-market, employee satisfaction, customer satisfaction, and so on. Then benchmark these, if possible. And also follow their development over time, to determine whether they are improving or not.”
Original source: Q&A on the Book Agile Management