What
TRIZ (Theory of Inventive Problem Solving) teaches that contradictions are solvable without tradeoffs. Step 1: identify the contradiction — "I need X but that causes Y." Step 2: classify it as technical (one parameter improves, another worsens) or physical (something must be both A and not-A). Step 3: look up the contradiction matrix and select from 40 inventive principles.
Key principles include segmentation, extraction, local quality, asymmetry, merging, universality, nesting, anti-weight, prior action, prior cushioning, inversion, dynamism, and partial/overdone actions. The central insight is the Ideal Final Result (IFR) — the system performs its function without existing.
When to Use
Apply TRIZ when you face a design tradeoff or contradiction that seems to require compromise. Use it in architecture decisions, product design, and any problem where two conflicting requirements must both be satisfied.
How
- Identify the contradiction: "I need X, but that causes Y."
- Classify as technical or physical contradiction.
- Consult the contradiction matrix to find relevant inventive principles.
- Apply the selected principles to dissolve the contradiction without compromise.
- Beware the anti-pattern: settling for compromise instead of dissolving the contradiction.