13 The other way round

Invert the action(s) used to solve the problem (e.g. instead of cooling an object, heat it).
  • To loosen stuck parts, cool the inner part instead of heating the outer part.
  • Bring the mountain to Mohammed, instead of bringing Mohammed to the mountain.

Make movable parts (or the external environment) fixed, and fixed parts movable.
  • MRI scanner: the patient stays still while the machine rotates around them.
  • Rotate the part instead of the tool.

Turn the object (or process) 'upside down'.
  • Turn an assembly upside down to insert fasteners (especially screws).
  • Empty grain from containers (ship or railroad) by inverting them.
Principe 13 : MRI scanner: the patient stays still while the machine rotates around them.


From TRIZ to ASIT

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Concrete examples

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Is this TRIZ principle frequently used?

This principle is moderately used with 141 instances in the matrix.

This principle is proposed to solve the following contradictions:

Click on a contradiction to explore it

2/6 2/11 2/12 2/23 2/33 3/9 4/12 5/13 5/18 5/26 5/32 5/33 5/34 5/36 7/18 7/21 7/22 7/33 9/1 9/3 9/10 9/18 9/23 9/24 9/32 9/33 10/2 10/9 10/27 10/31 11/2 11/27 12/4 12/18 12/34 12/37 13/3 13/5 13/15 13/19 13/28 14/9 14/13 14/36 15/13 15/27 15/35 17/15 18/7 18/9 18/22 18/23 18/34 18/36 19/7 19/13 19/35 21/6 22/3 22/18 23/9 23/18 23/37 24/39 26/28 26/36 26/39 27/18 27/35 27/36 27/38 28/7 28/9 28/13 28/33 28/34 28/35 29/1 29/22 30/2 30/10 30/18 30/39 32/2 32/3 32/5 32/7 32/9 32/12 32/13 32/33 32/35 33/1 33/2 33/3 33/5 33/9 33/10 33/17 33/18 33/19 33/22 33/28 34/5 34/11 34/12 34/18 34/28 34/36 34/38 35/15 35/19 35/23 35/27 35/32 36/5 36/12 36/14 36/17 36/18 36/22 36/26 36/27 36/32 36/34 37/1 37/2 37/5 37/12 38/3 38/5 38/7 38/11 38/12 38/14 38/19 38/26 38/32 38/34 39/24 39/30


The colour indicates the ranking of the proposed principle to solve the contradiction: 1st, 2nd, 3rd, 4th.
This ranking reflects the frequency of occurrence of the principle in the analysed patents for this type of contradiction.
When a principle appears in first position, it means that it is statistically the most used in the patents studied for this type of problem.

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