Author: Toru Nakagawa, Hideaki Kosha and Yuji Mihara
Abstract:
We have reorganized the whole body of TRIZ solution
generation methods (including Inventive Principles, Inventive Standards, Trends
of Evolution, and Separation Principle) and unified them in the framework of
USIT (Unified Structured Inventive Thinking). USIT has only five Solution
Generation Methods. They are operations of Pluralization onto Objects,
Dimensional change onto Attributes, Distribution onto Functions, and
Combination and Generalization onto Solution elements. Each of these operations
has several variations which are well described by guidelines enriched with
know-hows of TRIZ. Thus USIT Solution Generation Methods form a simple and
unified system of the whole TRIZ methodology. For using them effectively,
problem solvers should prepare during the problem definition and problem
analysis stages for clear understanding of the mechanism of the problem system
in terms of USIT basic concepts of Objects-Attributes-Functions as well as
Space and Time. Using this scheme, we have been applying USIT to various
industrial problems. Usage of the scheme is illustrated in case of the “Picture
Hanging Kit Problem”. Experiences of promoting and applying TRIZ/USIT in a
Japanese industry are also presented.
This paper was originally published in “TRIZ Home Page in
Japan” in Jan 2003. Reposted in trizsite.com under the permission of Dr.
Nakagawa, Editor, TRIZ Home Page in Japan. For original contents please refer to
the author’s site.
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