INTRODUCTION TO

TRIZ

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TRIZ is acronym of Russian phrase "Teorija Rezbenija Izobretatelskib Zad

ach". It's meaning is: Theory of inventive problem solving(TIPS).

What is TRIZ?

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Genrich Altshuller invented TRIZTRIZ is an evolving, open-ended system for

enhancing human inventiveness through:

• Systematic identification of problems and ideal solutions

• Concentrating on all the resources available, to get more out of less

• Overcoming various blocks through approaches that have worked in other disciplines

TRIZ Principles

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Don't accept compromises. Eliminate them.

Somebody, someplace, has already solved your problem or one similar to it. Creativity means finding that solution and adapting it to the current problem.

Pharmaceutical industry needed a way to deal with excess foam from a pharmaceutical process, solution came from the beer industry

What is TRIZ trying to do?

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CREATIVITY

INVENTIONINNOVATION

Three premises of TRIZ

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1. Idealitysystems evolve towards increased

ideality, where ideality is defined as

• Ideality = Benefits / ( Costs + Harm)

• Evolution is in the direction of » Increasing benefits» Decreasing costs» Decreasing harm

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Solutions with higher degrees of ideality are more successful in the market

• The ideal system performs a required function without actually existing.

• Start by focussing on solutions not problems, then ask how can we use the resources to achieve this?

Ideality (cont’d)

2. ContradictionAn inventive solution involves wholly or partially eliminating a contradiction.

Contradiction is a situation when the known solution meets some requirements, but generates harmful or undesirable effects.

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Three premises of TRIZ(cont’d)

Contradiction(cont’d)

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Technical Contradictions: something gets better, something else gets worseStronger at cost of additional weight Greater bandwidth requires more power Faster airbag deployment requires greater force

Physical Contradictions: one object has contradictory requirementsCoffee hot enough to enjoy but not so hot as to burnSoftware powerful features but easy to use A pen tip should be sharp to draw fine lines, but blunt

to avoid tearing paper

Three premises of TRIZ(cont’d)

3.System Approach

As knowledge grows in any particular field the development of the knowledge base can be viewed as going through three stages.

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Why TRIZ?

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TRIZ uses the world’s knowledge;TRIZ is systematic and repeatable; TRIZ is based on proven successful patents;You can build your own toolkit from the

TRIZ tools;It’s quick;It can be used in groups;It’s not just for engineers;

5 Levels of Inventiveness

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TRIZ Trends help you:

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• Predict future technologies, new products and improvement of current systems

• Define what you want – Ideality • Understand where you are - using S-Curves and seeing

the next steps and future possibilities• See the most promising directions of your products and

those of your competitors • Choose / evaluate the most promising ideas being

developed and help you develop those products

Principles of Invention

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Familiarity with all 40 Principles is essential for future effective problem solving. The 40 Principles are accessed for problem solutions by defining Physical and Technical Contradictions, using:

• The Separation principles to solve Physical Contradictions (you have opposite requirements for the same thing e.g. I want an umbrella big enough to protect me from the rain, but small to carry around).

• The TRIZ Contradiction Matrix to solve Technical Contradictions (something improves but something different gets worse e.g. as I make something stronger, it gets heavier.[2]

40 Principles of Invention (cont’d)

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Contradiction Matrix: The 39

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1. Weight of moving object2. Weight of stationary object3. Length of moving object4. Length of stationary object5. Area of moving object6. Area of stationary object7. Volume of moving object8. Volume of stationary object9. Speed10. Force (Intensity)11. Stress or Pressure12. Shape13. Stability of the object’s composition14. Strength15. Duration of action of moving object16. Duration of action of stationary object17. Temperature18. Illumination intensity19. Use of energy by moving object20. Use of energy by stationary object

21. Power22. Loss of Energy23. Loss of substance24. Loss of Information25. Loss of Time26. Quantity of substance27. Reliability28. Measurement accuracy29. Manufacturing precision30. Object-affected harmful factors31. Object-generated harmful factors32. Ease of manufacture33. Ease of operation34. Ease of repair35. Adaptability of versatility36. Device complexity37. Difficulty of detecting and

measuring38. Extent of automation39. Productivity

Air bag problem

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Airbags need to inflate before contacting occupants to prevent forward motion. We would like to inflate the air bags faster while decreasing the adverse effects

• Principle 16: Partial or Excessive ActionUse a lower powered air bag. By using less power the

acceleration of the bag is less, and injuries will be reduced.

Use smaller air bags with higher power. These bags will reach full inflation sooner.

Air bag problem(cont’d)

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Principle 21: Rushing ThroughInflate the air bag faster than current practice.

Principle 40: Composite materialsAirbag material that can’t grab skin as it is deployed

We usually accept a compromise, but this is often not necessary. Powerful solutions are the ones that don’t accept the trade-

offs. Compromise when necessary.

TRIZ: Tool, Methods & Philosphy

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Philosophy

Methods

Tools

Ideality, evolution

My ProblemMy SolutionProblem like MineGeneric Solution

IFR, Contradictions, Trends, Resources, Function Analysis

Inventing the wheel

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IFR (Ideal Final Result )

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A description of the best possible solution for the problem situation regardless of the resources or constraints of the original problem

1 •Eliminates the deficiencies of the original system

2 •Preserves the advantages of the original system

3 •Does not make the system more complicated (uses free or available resources.)

4 •Does not introduce new disadvantages

Trends of Evolution (S-curves)

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1 •to predict the future characteristics of the products in the process of product evolution

2 •based on the fact that all products, process or technical systems evolve over time

3 •There are certain patterns of evolution which repeats in every product or system

4 •According to TRIZ, if this trend or patterns is applied properly, then we can predict the future of the product

S-curves

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Resources'

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• Formulate a list of resources • prioritize them in their order, internal and free at the top,

external and paid at the bottom. • Define what kind of resources are needed for solving the

problem • Evaluate and estimate each of the existing resources • Prioritize in the order of their effects/ usefulness to the

given problem

Function Attribute Analysis (FAA)

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• to understand the elements of the system, their interactions, and the problems with those interactions

• Why? Solutions change over time BUT functions remain– Functions: Move from A to B

• Walk, Horse, Motorbike, CarTrimming Rules

Can I eliminate this part?Do I need the functions offered by the part?Can something else in or around the system perform the

functions?Can an existing part perform the function?Can a low cost alternative perform the functions

Conclusion

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• TRIZ is NOT a SOLUTION to a problem BUT a tool to generate better and useable idea to solve the problem.

• TRIZ is not to find root cause of a problem BUT a tool to solve founded root cause of a problem

• Main ideas behind TRIZ become a powerful tool for managing knowledge and solving problems that contain contradictions in many areas

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THANKYOU