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Appendix B: The Contradiction Matrix

How To Invent (Almost) Anything > Appendix B: The Contradiction Matrix

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To use this matrix with the other appendices to solve problems using TRIZ, use the following steps:

1. Critical parameters

Use the table of 39 Parameters (in Appendix A) to identify critical parameters of your problem.

2. Contradictions

Identify contradictions between these critical parameters, which is where one parameter causes problems with another parameter.

3. Find numbers of resolution principles

Use the Contradictions Matrix to find the numbers for the Principles (which are in Appendix C) that can be used to resolve the contradictions.

4. Investigate the resolution principles

Use the numbers from the Contradiction Matrix to look up resolution in the list of 40 Principles (in Appendix C). Use the principles as a guide and stimulation to find solutions to the problem. For more details, consult Chapter 5, Basic TRIZ.

Contradiction Matrix

Normally, the Contradiction Matrix is a 39x39 grid. This can be rather awkward to use, so the table is reproduced here as a series of sub-tables. Just find the table with the right contradiction number for row (feature to change) and column (undesired result).

Here is a short-cut table to help you get to the part of the contradiction table that you need.

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