May 2023
Intermediate to advanced
132 pages
13h 52m
English
book
Universal Principles of Design, Updated and Expanded Third Edition
by William Lidwell, Kritina Holden, Jill Butler
Content preview from Universal Principles of Design, Updated and Expanded Third Edition
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108 Levels of Invention
A model that classifies inventions based on complexity, nonobviousness, and impact.
The levels of invention model is the centerpiece of an invention methodology referred to as TRIZ, a Russian acronym that translates to Theory of Inventive Problem Solving. The model is the product of a systematic review of 200,000 patent abstracts, from which 40,000 exemplars were selected, and from which five categories of inventions were derived. The levels of invention are ranked based on their ability to eliminate performance tradeoffs.1
- Level 1: Minor ImprovementsSolves a simple problem by refining existing designs, leveraging common knowledge and common sense within a domain. These improvements are generally not sufficiently novel ...
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