Ideas are a dime a dozen if our brainstorming/problem solving sessions go well.   To assess our ideas, we use a scoring system weighted towards what is most important to us. ie. the chance to create a strong strategic platform for existing services is more important than the product or service’s market readiness. We also compare our recent scoring to scoring from years of analysis to ensure we are being objective and applying our lessons learned uniformly.    When we’re assessing ideas that are technology related, we define technology readiness with NASA’s TRL and used that as a model for all our criteria. (http://en.wikipedia.org/wiki/Technology_readiness_level)