This question is typically asked by hiring managers that work complex projects, or do thorough interviews to select the right person for their environment. Given this is a multi-part question that requires an element of strong Technology and Business Knowledge. This mix required a well thought out response that addresses every part of this question. Let's examine some scenarios of how this could be answered, and how you can prepare for a similar answer. IT Consultants and Management Consultants might come across this question since it addresses the approach you would take, where you might be able to find this information, and some market analysis to determine product demand in the market. An example response might be that you used market intelligence data to research demand, consumer spending, demographics, and other related factors. Since this a hypothetical question by the interviewer, they will be looking for what you would do to obtain this information, and how you present it for review.