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The matrix of contradiction is the best-known tool of the TRIZ. Built in Altshuller’s initial idea that a problem has already been solved, it quickly provides solutions.

Introduction

The matrix of contradiction is the best-known tool of the TRIZ. Built in Altshuller’s initial idea that a problem has already been solved, it quickly provides solutions.

Based on the study of several hundred thousand patents (according to the sources, this ranges from 200,000 to 400,000), he identified the common points and the way in which the depositories of these patents solved the problems. Altshusser made the following observations :

  • Innovations are often based on the same fundamental solutions, even if they are applied in different industrial and scientific sectors.
  • Often, the most obvious solution for a given problem is not applicable, since opposing requirements must be met. A solution is truly innovative only when it eliminates the contradiction.
  • Les différentes inventions sont basées sur 40 principes inventifs de solution (segmentation, combinaison, …).

Use

  1. Identify the technical contradiction of the problem using TRIZ tools.
  2. Choose from the 39 parameters, the one that needs to be improved and the one that will be degraded.
  3. Read the proposed solution (s) among the 40 principles of innovations.
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