Abstract
Physical contradiction is at the heart of TRIZ contradiction problem solving. Physical contradiction is based on two contradictory demands placing on a same parameter of the same system. Extending from the concept of Separation Principles, System Transition, Parameter Deployment and Parameter Manipulation,this research proposed a unified theory and concrete operational procedures based on Substance-Function-Attribute Modeling and graphed physical contradiction and Parameter Manipulation to solve physical contradictions. The method of Parameter Manipulation includes Parameter Domination, Parameter Separation and Parameter Transfer. The idea of Parameter Domination is to identify compatible constituent parameters and strength the parameters to reach the simultaneous satisfaction of two dissimilar objectives. The idea of Parameter Separation is to delegate the satisfaction of the two contradictory demands to their two constituent parameters or two value ranges of a constituent parameter at the problem areas thus the contradiction can be eliminated. The idea of Parameter Transfer is to transfer one or both satisfaction of the two contradictory demands to one or two parameter(s) seemingly unrelated to the problem point thus avoiding the contradiction. The contributions of this research include: (1) Strengthening a unified theory of parameter manipulation with Parameter Domination, Parameter Separation and Parameter Transfer; (2) Graph original 17 problem solving strategies which were proposed in Parameter Deployment and Parameter Manipulation, and incorporate Parameter Domination to form 18 problem solving strategies to solve physical contradictions; (3) Applying graphical problem solving strategies to former cases and attaining more solutions than previous methods to increase the rate of problem solving, and adding new cases to verify the practicality of graphical problem solving strategies; (4) Strengthening standard procedures, forms, instructions and case examples to assist users to learn and use easily.