Don't think about any product before thinking about who when and where you can reach — said short think reachable audience first. the reachable audience defines the type of products and services you could go into. Doing other than that is inverting the funnel and expecting to get more from the smaller orifice. It helps to have a good framework for doing work that matters and it is even more true when it comes to product development and marketing. The noise of this crowdy worldwide marketplace can’t be filtered for you to find the right voice until you know exactly what people want and seek and the internet is the biggest, noisiest, and crowdy aggregation of micro marketplaces. That’s why it helps to have a framework, PDF is one of these frameworks that help you create and ship better things.