Software Engineering and TRIZ Application of TRIZ to Software Design Patterns

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Software Engineering and TRIZ - Application of
TRIZ to Software Design Patterns

• Individual Research Presentation
• Unnati Sethi
• Wednesday April 11th, 2007

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Agenda

• What is TRIZ?
• Software Engineering reviewed with TRIZ
• Feedback from s/w engg to TRIZ
• Application of TRIZ to Software Design Patterns
• Conclusions

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TRIZ

• ?????? ??????? ???????????????? ?????
• (Teoriya Resheniya Izobretatelskikh Zadatch )

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What is TRIZ?

• Theory of solving inventive problems or Theory of
  inventive problems solving (TIPS)
• Model-based technology for generating innovative
  ideas and solutions for problem solving.
• 40 years of studying patents in different areas
  of engineering resulted in several important
  discoveries which form the TRIZ philosophy

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TRIZ Fundamentals

• TRIZ 40 principles - Evolution of technology is a
  regular process.
• Contradictions - A contradiction results in the
  two conflicting design parameters.
• Two ways to solve problems that contain
  contradictions by finding a compromise between
  two potentially conflicting requirements
  (optimization) and by eliminating the
  contradiction.

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TRIZ Philosophy
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Software Engineering TRIZ

• Software Crisis in TRIZ -
• Every technical system evolves by increasing its
  complexity and then reducing it.
• The focus of customers' (or users') interests
  shifts in the following four stepsPerformance
  --gt Reliability --gt Convenience --gt Price
• Simplifying Systems by Using Hierarchical
  Structure -
• Nested Doll
• Universality
• Segmentation

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Contd.

• Trimming of GoTo statements
• TRIZ Trimming
• TRIZ Contradiction Concepts

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Feedback from S/w Engg. to TRIZ

• Step-wise Refinement back to TRIZ Segmentation
  Principle
• Extend Nesting Principle for Representing
  Hierarchy of Systems
• Avoiding from Skewed Nesting
• Concept of Easiness to Understand
• Necessity of Guiding Principles for Simplifying
  Complex Systems
• Necessity of Extending Universality toward
  Universal Standards
• Process of Revealing Contradictions

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Application of TRIZ to Software Design Patterns

• Adapter Pattern and the Mediator Principle
• Bridge Pattern and the Principle of Extraction
• Composite and Iterator Pattern and the Principle
  of Universality
• Decorator Pattern and the Principles of Nesting
  and/or Flexible Membranes
• Fascade Pattern and the Principle of
  Consolidation
• Flyweight Pattern and the Principle of Transition
  into a New Dimension
• Proxy Pattern and the Principles of Parameter
  Change and/or Phase Transition

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Conclusions

• Strong correlations exist but need to be
  formalized.
• In depth research required to facilitate
  symbiotic growth of software engineering design
  patterns and TRIZ.

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Questions?

• ?

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References

• Wikipedia - http//en.wikipedia.org/wiki/Triz
• Research by Toru Nakagawa(Osaka Gakuin
  University, Japan)
• http//www.osaka-gu.ac.jp/php/nakagawa/TRIZ/eTRIZ/
  epapers/e2005Papers/eNakaTRIZCON-SE1/eNakaTRIZCON2
  005-SE1-StrProg.html
• http//green.osaka-gu.ac.jp/php/nakagawa/TRIZ/eTRI
  Z/epapers/e2005Papers/eNakaETRIA-SE2/eNakaETRIA-SE
  2-Slides051113.pdf
• Workshop Communicating Design Patterns with TRIZ
  by John W. Stamey and Ellen Domb
  http//64.233.167.104/search?qcachei8p1DGbAtRAJ
  www.triz.org.uk/papers/TRIZdesignpatterns.pdftriz
  designpatternshlenctclnkcd5glus

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References contd.

• TRIZ40 - www.triz40.com
• TRIZ A Systematic Approach to Innovative Design
  http//www.insytec.com/TRIZApproach.htm
• TRIZ journal - TRIZ and Software - 40 Principle
  Analogies, Part 1 http//www.triz-journal.com/arch
  ives/2001/09/e/index.htm
• TRIZ Journal Article Archive http//www.triz-journ
  al.com/archives/2007/02/