I am coming across a lot of material (blogs, books and videos) about lean startup. The overall approach is nothing new but the availability of a lot more details, case studies and statistics are making huge impact.
The iterative approach to validate the business assumptions makes perfect sense. However, I have not been able to find any recommendations for one particular point, and hence my question.
So the larger product/service vision at the concept/idea stage consists of several assumption, and as a founder you have list of features you think the target end state product should have, and the approach should be to create the list of features for MVP and implement that after confirming (and tweaking if necessary) your assumptions with a set of prospective users.
My question is - When you approach prospective customers for feedback (assumption validation), is it better to discuss the grand vision (which might have several value adds to their business), or just the assumptions related to MVP (first set of features)?
Those who believe in this approach and have done it - Do you take just the prototype to explain the solution? What else can be helpful to gather feedback?
Thanks in advance.