Understanding TRIZ

Why TRIZ?

Classical innovation tools such as brainstorming or trial-and-error rely on quantity — many ideas in the hope that one of them is good. TRIZ relies on pattern recognition instead: Altshuller showed that most inventive solutions stem from roughly 40 recurring principles, regardless of the field. Once you formulate a contradiction cleanly, you can look up historically proven solution paths instead of reinventing the wheel every time. Inventing turns from a flash of inspiration into a reproducible procedure.

Core concepts

Contradiction — the key to invention

A technical contradiction exists when improving one parameter degrades another (example: a car should become safer — i.e. heavier — but at the same time more fuel-efficient — i.e. lighter). A physical contradiction demands two opposite properties of the same element (hot and cold, hard and soft, present and absent). Inventive solutions resolve the contradiction rather than smoothing it over with a compromise.

Ideality — the direction of progress

The Ideal Final Result (IFR) is a thought experiment: what if the desired function were delivered without a system, without cost and without harmful side-effects? TRIZ holds that technical systems evolve towards higher ideality — more benefit per cost, fewer parts, fewer harmful effects. The IFR sharpens the goal and prevents you from getting trapped inside the existing solution.

Laws of technical-system evolution

Altshuller identified eight laws by which technical systems evolve (e.g. increasing completeness, transition to the micro-level, dynamisation, self-adaptation). Rating your system's maturity against these laws reveals which evolutionary leaps are likely next — and which competing solutions will probably appear in the medium term.

Tools at a glance

40 inventive principles

A library of 40 generic solution patterns (e.g. "Segmentation", "Prior action", "The other way round", "Phase transition"). Every principle is phrased abstractly and transfers across industries — from refrigerators to software architecture.

Contradiction matrix

A 39×39 matrix that lists typical "improving" against "worsening" parameters. Each cell points to the statistically most frequent principles for that contradiction. The matrix shrinks the search space from "which of the 40 ideas applies?" down to "which 3–4 principles have proven useful for this exact constellation in the patent record?".

9 Windows (System Operator)

A 3×3 grid that views the system on two axes simultaneously: hierarchy (subsystem · system · supersystem) and time (past · present · future). The tool breaks the tunnel-vision by deliberately forcing you into the neighbouring cell — opening up solution spaces that purely present-state thinking never reaches.

ARIZ — Algorithm for Inventive Problem Solving

The heavyweight in the TRIZ toolbox: a nine-step algorithm that turns a vaguely formulated problem step-by-step into a physical contradiction and finally into its resolution. ARIZ is typically reserved for situations where the 40 principles and the contradiction matrix do not lead directly to a solution.

When is TRIZ the right tool?

TRIZ shines whenever classical brainstorming or trial-and-error stall — typically with hard technical contradictions, in innovation and engineering work, or when an existing system has hit the limits of its architecture. For purely statistical process optimisation (reduce variation, raise Cpk), DMAIC remains the superior tool. TRIZ and DMAIC are not mutually exclusive: in the Improve phase of a DMAIC project, TRIZ can help when the identified root causes create what looks like an unavoidable trade-off.

Common pitfalls

• Giving up on the contradiction too early. If you don't formulate the trade-off cleanly, you fall back on a compromise ("a little more safety against a little more weight") and waste the chance for an inventive solution.
• Taking the 40 principles literally. They are abstract solution patterns, not finished blueprints — translating them onto your specific problem still requires thinking.
• Using TRIZ as a brainstorming add-on. Without a clean formulation of function, ideality and contradiction, TRIZ collapses into a list of buzzwords and loses its systematic edge.
• Watering down the Ideal Final Result during the real design. The strength of the IFR is precisely that it does not have to be reachable — it only points the direction. Making it "realistic" too early destroys exactly that orientation.

TRIZ in this app

DMAIC.io contains two TRIZ tools in the Improve phase: the "9 Windows" module for system analysis across hierarchy and time, and the "Contradiction Matrix" module with the 39 parameters and 40 principles after Altshuller. Both modules persist their state inside the project and can be JSON-exported and re-imported like any other module. You reach them via the hamburger menu (☰) on the Improve tile, or by drag-and-dropping them from the "More" tile into another phase if you want to use TRIZ already in the Define or Analyze step.