I'd recommend the business model canvas and the book 4 steps to the epiphany. The lean way is to make hypothesis about your product or idea, and then get out o

I'd recommend the business model canvas and the book 4 steps to the epiphany. The lean way is to make hypothesis about your product or idea, and then get out of the building and see if people would like it. Then, if its worth it, pursue. If not then pivot. *edit sorry for the buzz-word spree.