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TRIZ: Contradictions

 

Creative tools > TRIZ Contradiction Analysis  > Contradictions

 

These are the 39 domains which are defined in TRIZ as being sources of contradiction. Most inventions are about solving contradictions.

Contradictions occur between two items in the table below. One item is what you are seeking and the other is something that is getting in the way.

For example, to make a car accelerate faster, you may put in a bigger engine, but the weight of the engine reduces its performance. This is a contradiction between power (which you want) and weight (which you do not want).

 

1

Weight of moving object

2

Weight of non-moving object

3

Length of moving object

4

Length of non-moving object

5

Area of moving object

6

Area of non-moving object

7

Volume of moving object

8

Volume of non-moving object

9

Speed

10

Force

11

Tension/pressure

12

Shape

13

Stability of object (resistance to change)

14

Strength

15

Durability of moving object

16

Durability of non-moving object

17

Temperature

18

Brightness

19

Energy spent by moving object

20

Energy spent by non-moving object

21

Power

22

Waste of energy

23

Waste of substance

24

Loss of information

25

Waste of time

26

Amount of substance

27

Reliability

28

Accuracy of measurement

29

Accuracy of manufacturing

30

Harmful factors acting on object

31

Harmful side-effects

32

Ease of manufacture

33

Ease of use

34

Ease of repair

35

Adaptability (to external conditions)

36

Complexity of device

37

Complexity of control

38

Level of automation

39

Productivity

See also

 

 

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