Balance Agile and Plan-Driven Methods: How agile or plan-driven should or can my project? (five critical factors)
Evaluate the result
By rating a project along each of the five axes, you can visibly evaluate its home ground relationships. If all the ratings are near the center, you are in agile method territory. If they are at the periphery, you will best succeed with a plan-driven approach. If you are mostly in one or the other, you need to treat the exceptions as sources of risk and devise risk management approaches to address them.
Boehm, Barry; Turner, Richard N.. Balancing Agility and Discipline (S.82). Pearson Education. Kindle-Version.