Ideas:
Sentences of thought that are mental
phenomena which somehow drift into the mind, wander through it and
vanish into obscurity.
Few Techniques of Idea Generation: brainstorming, synectics, lateral thinking, morphological analysis, mind mapping, force field analysis, etc.
Few Methods of Idea Evaluation: castle technique, creative evaluation, decision balance sheet, disjoint incrementalism, reverse brainstorming, weighting systems, multifactor matrix, etc.