Most entrepreneurs constantly come up with new ideas. Whether they are working on another project, driving, or lying in bed, their minds are constantly churning out new products, services and ways of doing things. For these entrepreneurs, the startup challenge shifts from coming up with ideas to choosing which idea to execute.

There are three initial factors that entrepreneurs must consider when judging their ideas. These factors include the following:

1. Size of opportunity: A good first question for entrepreneurs to answer is whether the opportunity is big enough for them to get an appropriate return on their investment of time, energy, money, etc. If the opportunity is too small, it