TRIZ Summary

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TRIZ Summary

• Chris Killer

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Overall TRIZ Philosophy

• Concentrate on the ideal solution
• Ideality is the overriding driver for system
  evolution
• Concentrate on all the resources available to us
• If we can use these more effectively we will get
  more out of less

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Ideality

• I.e. all benefit, no cost, no harm. If we can
  accurately define this, we are half way there.
• Ideality Value Benefits
• Cost Harm
• Start by focussing on solutions not problems
• Then ask how can we use the resources to achieve
  this?

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Resources

• Everything in the system is a resource (even the
  harmful things)
• The best solutions will come from knowing about
  all the resources

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What is a Resource

• Something available that isnt being used
• Technical e.g. substances, fields, functions,
  information, time, space
• Personal e.g. skills, knowledge, experience,
  attitudes, feelings, perception

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Contradictions

• All systems contain contradictions
• What gets worse as what gets better?
• E.g. strength v weight
• We usually accept a compromise or trade-off, but
  this is often not necessary
• Powerful solutions are the ones that dont accept
  the trade-offs
• We should actively look for contradictions as
  there are ways of eliminating compromise

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• Question How can we re-design a leaking flange
  joint?
• What are we trying to make better? Seal tightness
• Reliability
• What gets worse as we do this? Weight
• Ease of operation
• Complexity

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• TRIZ solution from 40 inventive principles
• Another Dimension - Tilt or re-orientate an
  object, lay it on its side

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Functionality

• Use functional analysis when you know the system
  will not change fundamentally
• Create a Subject-Action-Object (SAO) table
  including harmful actions
• From this create flow diagram incorporating all
  parts of the system
• Define the Main Useful Function (MUF) of the
  system and ask how each part contributes to this
• Trim out least useful parts

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Functional Analysis
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(No Transcript)
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PP3 energy indicator
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Psychological Inertia

• Problem solving is like digging for treasure in a
  field
• If a hole already exists, our inclination is to
  dig it deeper, hence lose sight of the rest of
  the field
• If someone else comes along, we encourage them to
  jump in the hole with us
• The overall effect is called psychological
  inertia

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Time Space

• Naturally creative people
• think in time space
• This principle is used with The Nine Boxes
• We naturally think in the central box, but it is
  useful to consider all the others

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Super-system



System



Sub-system
Present
Past
Future
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40 Inventive Principles

• Generic principles can provide solutions to
  specific problems by the means of analogical
  thinking
• As far as we know there are only 40 ways to solve
  a contradiction
• Knowing this provides an excellent means of
  focussing brainstorm activities

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40 Inventive Principles

1. SEGMENTATION
2. TAKEOUT
3. LOCAL QUALITY
4. ASYMMETRY
5. MERGING
6. UNIVERSALITY
7. NESTED DOLL
8. ANTI-WEIGHT
9. PRELIMINARY ANTI-ACTION
10. PRELIMINARY ACTION
11. BEFOREHAND CUSHIONING
12. EQUIPOTENTIALITY
13. OTHER WAY ROUND
14. SPHEROIDALITY
15. VARIABILITY or DYNAMICISM
16. PARTIAL or EXCESSIVE ACTION
17. ANOTHER DIMENSION
18. MECHANICAL VIBRATIONS
19. PERIODIC ACTIONS

• "SKIP"
• BLESSING IN DISGUISE
• FEEDBACK
• INTERMEDIARY
• SELF-SERVICE
• COPYING
• SERVICE LIFE - cheap/short vs. expensive/long
• MECHANICS SUBSTITUTION
• PNEUMATIC or HYDRAULIC CONSTRUCTIONS
• FLEXIBLE SHELLS and THIN FILMS
• POROUS MATERIALS
• CHANGE OF COLOR
• HOMOGENEITY
• DISCARD and RECOVER
• CHANGE PHYSICAL or CHEMICAL PARAMETERS
• PHASE TRANSITIONS
• THERMAL EXPANSION
• STRONG OXIDANTS
• INERT ATMOSPHERE

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40 Inventive Principles

• with technical examples
• http//www.triz-journal.com/archives/1997/07/b/ind
  ex.html
• with business examples
• http//www.triz-journal.com/archives/1999/09/a/ind
  ex.htm
• with social examples
• http//www.triz-journal.com/archives/2001/06/a/ind
  ex.htm