Regarding planning and developing in startups:
We should keep open what is open; and go forward with the unproblematic when there are no choices. Some decisions are best done early, some late. For instance, using Amazon for storage is certain, because it's cheapest.
For optional aspects without measured customer interest, action is best delayed.
Developing some aspects puts constraints sometimes on other aspects. Some aspects, certainly needed, are best delayed if multiple possible implementations exist (if other crucial aspects are still undone).
Obtaining the fastest possible overall development mandates choosing (based on actuality) what to work on, and what not to work on yet.
Copyright (c) 2012 Mark D. Blackwell.