2 Taking out

Separate an interfering part or property from an object, or single out the only necessary part (or property) of an object.
  • Locate a noisy compressor outside the building where compressed air is used.
  • Use fiber optics or a light pipe to separate the hot light source from the location where light is needed.
  • Use the sound of a barking dog, without the dog, as a burglar alarm.
TRIZ principe 2


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.

Using TRIZ in your organization?

Discover our structured creativity training to solve your technical challenges with your R&D teams.