Cooper recommends keeping the initial screening simple, for instance by asking the following two questions:
 

• Is the idea consistent with company objectives or strategy?
• Is the idea do-able?

  For new products the questions could be
   

• Will customers like it?
• Is it technically feasible?
• Will it make money?

Paul Sloan recommends a general set of criteria for all sorts of ideas, the FAN method. Are you a FAN of the idea? Example:
 

• Is it Feasible?
• Is it Attractive?
• Is it Novel?

The third criterion here is important to ensure that fresh ideas are valued highly.

The British retail giant, Tesco, uses the following criteria for selecting ideas:
 

• Is it better? (For customers)
• Is it simpler? (For staff)
• Is it cheaper? (For Tesco).

Sources:

(1) Chalmers, Technology management and Economics, (http://publications.lib.chalmers.se/records/fulltext/143794.pdf)

(2) www.economist.com.na/general-news/1821-innovation-idea-evaluation-and-selection