What three aspects of customer demand considerations are most indicative of market interests?

The three aspects of customer demand consideration that are most indicative of market interests are:
1. The magnitude of customer demand.
2. The rate of growth of customer demand.
3. The heterogeneity of that demand across customer segments.
These three factors determine the success of a product in the market place and marketers used them as tools to predict how a product will behave in the market.