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| Scope / Aims | Simple and difficult inventive problems. Research & Development of new technique. | Entire design process, simple problems. New Production Development. |
| Task clarifications | Evolution Laws of systems.
Technological forecasting. |
Evaluation and technical, economic criteria . |
| Formulate problem | Technical conflict, natural contradictions. Abstract terms. | Requirements and constraints for product. Abstract terms. |
| Search for solution principles | Systematic focused methods.
Formulate system conflict. |
Random : all possible. Attempts and errors method. |
| Search for solution | Detail algorithm (ARIZ) | Conceptual design. |
| Creative methods | "Smart Little Peoples ".
Time-Space-Cost. Ideality. Fantasy Course. SCAMPER. |
Conventional brainstorming, synectics, 6-3-5 choice, Delphi and Morphological methods. |
| Product models | Substrate - Field analysis.
Concept of product. |
Concept and function structure. Create preliminary designs |
| Knowledge base | Patents Collection (~2M); Standards, Effects & Principles. | Design catalogues. Effects.
Engineering experience. |
| Vocabulary | About 30 basic functions. -- | 5 generally valid functions. + |
| Evaluation | Checklist in the ARIZ , Function - Cost Analysis. | Select the best preliminary scheme. Use-Value Analyze. |
| Detail Design | Out of the aims. | Systematic approach. |
| Computer support | Commercial /Windows/ [1975] | [~1990] |
| Documentation | In Russian (in English ~1997). | Available in English, German. |
| Integration | QFD, GEDS, FMEA, RCA | CAD, TRIZ , Creativity |
| Applications | Engineering, Management, Marketing, Advertisement. | Engineering. Product forecasting. |
| Education | Long ~ 250 h. Ex-USSR. | Short time. Worldwide. |
| Your suggestions |
TRIZ primarily focuses on the conceptual phase of design and difficulties that can rise on later design stages, while Pahl. & Beitz want to help at all stages of the design process, but their method almost useless at the conceptual phase, esp. ill-defined inventive problems.
TRIZ and GEDS are complementary rather than alternative methods. A TRIZnik can apply the GEDS for transformation of specific functions (mostly mechanical) into solutions due to the Design Catalogues of GEDS.
REFERENCES:
GEDS: Pahl G. & Beitz, W. Engineering Design, 3rd Ed., Springer-Verlag, Berlin,1995; Ulrich K.T. & Eppinger S.D. Product Design and Development. McGraw-Hill, NY, 1994.
TRIZ: Altshuller, G. S. Creativity as an Exact Science. Gordon and Breach Science Publishers, New York, 1988
Comparison: Malmqvist J., e.a., ACME 1996 ; Savransky S.D.,
QFD 1997 Conferences