In school, my marketing professors taught that businesses would avoid a lot of errors if they would introduce new products only after studying the intended market for the product first. Too many products are created only to find that there isn’t a market for them — no one wants to purchase them.
Its kind of like the idea “start with the end in mind,” execpt you have to do research to figure out the end first.
Marketing experts agree that the proper way to create a product is to start with a market study. Which group of people would be interested in which features of a potential product and how much would they be willing to pay for that product. Knowing this, the producer can decide whether or not the product is worth the effort. Or, just as importantly, what features or benefits the product should have to distinguish it from other products competing for the same customers. Once the study is complete, then, they argue, the product can be designed to meet what the market wants.
So, is this the way that a writer should plan out the books he writes?