I'm a huge fan of the interview process Ash Maurya recommends in Running Lean. I'd add to that the understanding Jobs to Be done (Read: Competing Against Luck b

I'm a huge fan of the interview process Ash Maurya recommends in Running Lean. I'd add to that the understanding Jobs to Be done (Read: Competing Against Luck by Christiansen) for an interview process that really get's to the base progress a user/client is trying to make in a given circumstance.