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TRIZ 40 Principles
Creative tools > TRIZ Contradiction Analysis > Principles
33. Homogeneity
A homogeneous substance is made up of the same material. So what if you made your device out of different materials? What would be the effect of each part? How would these interact? What if you used all the same material? The principle of homogeneity can also be used in other areas, such as the behaviour of parts of the system. In an electronic system all plugs could be the same to reduce costs, or they could be different to prevent accidentally plugging things into the wrong place.