Product Innovation

TRIZ 40 Principles

Creative Solving of Engineering Problems and Inventing New Products

By: Genrich Altshuller

Entrepreneurial Creativity (Ten3 Mini-course)

TRIZ ("The theory of inventor's problem solving")  was developed by a Soviet engineer and researcher Genrich Altshuller and his colleagues starting in 1946. It has been evolving ever since. Today, TRIZ is a methodology, tool set, knowledge base, and model-based technology for generating innovative ideas and solutions for problem solving. TRIZ provides tools and methods for use in problem formulation, system analysis, failure analysis, and patterns of system evolution. In contrast to random idea generation techniques such as brainstorming, TRIZ aims to create an algorithmic approach to the invention of new systems, and the refinement of old systems.



TRIZ Principles:     1 10     11 20     21 30     31 40





Conduct a process , or certain stages (e.g. destructible, harmful or hazardous operations) at high speed.


*Blessing in disguise* or *Turn Lemons into Lemonade*

Use harmful factors (particularly, harmful effects of the environment or surroundings) to achieve a positive effect.

Eliminate the primary harmful action by adding it to another harmful action to resolve the problem.

Amplify a harmful factor to such a degree that it is no longer harmful.



Introduce feedback (referring back, cross-checking) to improve a process or action.

If feedback is already used, change its magnitude or influence.



Use an intermediary carrier article or intermediary process.

Merge one object temporarily with another (which can be easily removed).



Make an object serve itself by performing auxiliary helpful functions.

Use waste resources, energy, or substances.



Instead of an unavailable, expensive, fragile object, use simpler and inexpensive copies.

Replace an object, or process with optical copies.

If visible optical copies are already used, move to infrared or ultraviolet copies.


Cheap short-living objects

Replace an inexpensive object with a multiple of inexpensive objects, comprising certain qualities (such as service life, for instance).


Mechanics substitution

Replace a mechanical means with a sensory (optical, acoustic, taste or smell) means.

Use electric, magnetic and electromagnetic fields to interact with the object.

Change from static to movable fields, from unstructured fields to those having structure.

Use fields in conjunction with field-activated (e.g. ferromagnetic) particles.


Pneumatics and hydraulics

Use gas and liquid parts of an object instead of solid parts (e.g. inflatable, filled with liquids, air cushion, hydrostatic, hydro-reactive).


Flexible shells and thin films

Use flexible shells and thin films instead of three dimensional structures.

Isolate the object from the external environment using flexible shells and thin films.



 TRIZ Principles:     1 10     11 20     21 30     31 40


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