Negative Selection sorts alternatives into ‘No’ and ‘Maybe’ to reduce a large number of alternatives. Use negative selection to select the best set of ideas quickly.

ALUo considers the Advantages, Limitations, Unique features , opportunities (overcoming limitations) of an idea, and generates solutions to overcome limitations in the idea.

Paired comparison is a technique which compares alternatives one to one in a tabular fashion. It is sometimes also used to compare criteria and calculate their weights. Alternatives are set-up over both table axes. When comparing one alternative with another, one can give a preference over one idea to another.