ion level: SIT operators operate on a consistent, content-transcending abstraction level. TRIZ’s techniques operate both on a high, content free, abstraction level and on a content expert-system like level. For example one of TRIZ’ techniques is the following “If you need to separate a mixture of two materials in a powder form, CHAPTER 4: THE SIT METHOD 113 use vibration”. Table 4-2 summarizes ...