Also ‘assumptions’, but I like the term hypothesis better because it emphasizes that we don’t take a side as to whether it is true or not. We specifically want to generate evidence that will either prove or disprove it.
Testable: You need to know how you would test it
Explicit: You need to be able to state it succinctly (on a post-it note)
Types of Hypothesis - there are lots
Customer: Who is the customer? Where would you find them?
Problem: What is their pain? What is the ‘job’ they are ‘hiring’ a product to do?
Solution: What kind of solution are they seeking? What features do they need? Will this solution actually address their problem?
Growth Hypothesis - Use will grow over time.
Value Hypothesis - Like Solution Hypothesis
The point is, don’t get too hung up on classifications
What is important is the idea of formulating testable hypotheses, running experiments, and updating your plans accordingly.