TRIZ: Systematic Invention and the Logic of Contradictions
Contradiction mapping, inventive principles, and why the best solutions eliminate trade-offs rather than manage them
What is TRIZ and how does it help solve hard problems systematically?
TRIZ (Theory of Inventive Problem Solving) is a systematic innovation method developed by Genrich Altshuller after analyzing hundreds of thousands of patents. Its core insight is that most breakthrough problems contain a "technical or physical contradiction" — a situation where improving one parameter worsens another — and that inventors across fields resolve these contradictions using a surprisingly small set of recurring strategies.
Altshuller spent decades studying patent databases and found that inventive breakthroughs were not random — they followed patterns. TRIZ names those patterns and turns them into a navigable toolkit. The practices below cover the most accessible and broadly applicable pieces: identifying contradictions, using the inventive principles, ideality thinking, and trimming. Evidence for TRIZ is largely practitioner-reported and observational; the mechanistic logic is strong but controlled trials are sparse.
Practices
- Name the contradiction at the heart of the problem
State exactly which parameter you need to improve and which parameter gets worse as a result.
- Sample inventive principles to generate solution directions
Apply one or more of TRIZ’s 40 inventive principles as generative lenses, even without the full contradiction matrix.
- Define the ideal final result first
Describe the perfect outcome as if the solution already exists and costs nothing, then work backward to what could enable it.
- Trim components to find what you can remove
Systematically ask which components in your current solution could be removed if another component took over their function.
- Inventory available resources before adding anything new
List all time, space, information, and energy already present in or around the problem — solutions often hide there.
- Calibrate whether the problem requires invention or just search
Determine whether your problem is already solved elsewhere before investing in original invention.
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- Osborn’s Brainstorming Rules, Made Practical
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