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
| 
