Three high level parameters help if one has to evaluate ideas.
The method that I have been following has the following three key parameters
1. Customer Value - To know more one can read HERE
2. Business Potential
3. Readiness and Feasibility
Now the trick is to carry out a pairwise comparison using the Analytic Hierarchy Process (AHP)
The Output given below - gives on the x-axis - relative score for Enterprise Readiness and Feasibility of the idea and y-axis gives a relative score of Customer Value. The size of the bubble gives the relative score for Business Potential.