Brainstorming group freestyle thinking about a problem generates a certain synergy of solutions
Free Association individual or group writes word or words down to symbolize opportunity or problems and then others that may relate to these until one pops up that suggests a solution.
Synetics use of four analogies, beginning with personal, going to direct, returning to symbolic and writing out an explicative fantasy of, presumably, the solution.
Scientific Methods posting of a hypothesis, data collection, followed by analysis of data, testing the options or decisions developed and making a selection of best.
Parameter Analysis an innovative technique that leads to research and development objectives. It focuses on primary issues and the underlying parameters which are then analyzed and shaped to create a solution.