Updated: Dec 4, 2019
Traditional roadmaps implement capability maturity in steps where the last step often involves optimization and continuous improvement processes. The premise is that you need to achieve the earlier steps before you can be effective.
However, the traditional approach often takes too long resulting in fatigue setting in, funds running out, and leadership losing interest. Rarely do companies ever reach the last step where effectiveness is finally evaluated and improved.
Alternatively, a capabilities improvement approach such as Lean Startup evaluates effectiveness at each stage of implementation defined by successive Minimal Viable Performance or Platforms (MVPs). This allows you to be effective right from the very beginning rather than only at the end.