PRFAQ

[…] how new ideas and products are developed at Amazon: Working Backwards from the desired customer experience. Before we start building, we write a Press Release to clearly define how the new idea or product will benefit customers, and we create a list of Frequently Asked Questions to resolve the tough issues up front. We carefully and critically study and modify each of these documents until we’re satisfied before we move on to the next step.”

Colin Bryar and Bill Carr – Working Backwards