triz

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

1. Identify the contradiction: "I need X, but that causes Y."
2. Classify as technical or physical contradiction.
3. Consult the contradiction matrix to find relevant inventive principles.
4. Apply the selected principles to dissolve the contradiction without compromise.
5. Beware the anti-pattern: settling for compromise instead of dissolving the contradiction.