Is the demand in the industry strong enough to warrant a substantial investment which specific market segment presents the greatest opportunity?

Forecasting Total Market Demand

Scenario: You are starting a business and you have asked the bank to give you a loan. The banker wants you to provide a demand forecast for the industry you are operating in. Follow the steps below to prepare for your next meeting with the banker.
Define the Market
select a product or service
identify potential users (min of 5)
discuss how product substitution could impact market demand.
Create market segment
create table that list each segment of end users
describe how you selected each market
Analysis of market potential
is the demand in the industry strong enough to warrant a substantial investment
which specific market segment presents the greatest opportunity?