上游充通大学 SHANGHAI JIAO TONG UNIVE Decomposition problems 1.To represent the problem as a NPUT OUTPUT single black box operating on Energy(?) Energy (? Material Hand-held Material (nails) Material(driven nail) > nailer Energy Signal (tool "trip")-- -Signal (? >Signal flows 2. Divide the single black box into subfunctions Store or Convert > Each subfunctions can Energy accept energy to extemal translational generally be further divided into energy energy even simpler subfunctions Apply Store Isolate ◆Dien > The division process is Nails translational nails nail energy to nail nail repeated until the team members agree that each "Trip"of Sense Trigger subfunction is simple enough to tool trip tool work with 3-10 subfunctions are recommendedDecomposition problems 1. To represent the problem as a single black box operating on  Material  Energy  Signal flows 2. Divide the single black box into subfunctions  Each subfunctions can generally be further divided into even simpler subfunctions  The division process is repeated until the team members agree that each subfunction is simple enough to work with • 3-10 subfunctions are recommended