TRIZ Summary Chris Killer Overall TRIZ Philosophy

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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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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

• SEGMENTATION
• TAKEOUT
• LOCAL QUALITY
• ASYMMETRY
• MERGING
• UNIVERSALITY
• NESTED DOLL
• ANTI-WEIGHT
• PRELIMINARY ANTI-ACTION
• PRELIMINARY ACTION
• BEFOREHAND CUSHIONING
• EQUIPOTENTIALITY
• OTHER WAY ROUND
• SPHEROIDALITY
• VARIABILITY or DYNAMICISM
• PARTIAL or EXCESSIVE ACTION
• ANOTHER DIMENSION
• MECHANICAL VIBRATIONS
• 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