This paper compares the Theory of Inventive Problem Solving (TRIZ) and Axiomatic Design (AD). Both AD and TRIZ are briefly reviewed and their possible . Abstract: Axiomatic design (AD) and theory of inventive problem solving of the differences and similarities between AD and TRIZ. 2 Review of AD and TRIZ. reviewing the use of axiomatic design (AD) within a TRIZ framework and making based on application similarities and differences found in the literature.

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It states there is always an uncoupled design that involves less information than a coupled design. Fey and Eugene I. To use these tools, one identifies based on the model obtained in Su-field analysis the class of a particular problem and then chooses a set of Standard Solution accordingly.

These Standard Solutions are separated into five classes according to their objectives; the order of solutions within the classes reflects certain directions in the evolution of technological systems. When a given set of FRs is changed by the addition of a new FR, or substitution of one of the FRs by a compqrison one, or by selection of a completely different set of FRs, the design solution given by original DPs cannot satisfy the new set of FRs.

These analytical tools do not use every piece of information about the product where the problem resides.

A Comparison of Triz and Axiomatic Design

Two basic principles, Independence Axiom and Information Axiom, are derived from the generation of good design practices. During the mapping process, one should anx violate the independence axiom described above. Submit an Article Contact us. These techniques were derived from the patent database, which relates to novel methods and axioamtic ideas. So, certain changes of the physical structure of a technological system guided by Contradiction Table and 40 Inventive Principles or Separation Principles are often required to remove contradiction, though restatement of the problem may sometimes help to overcome contradiction.

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Axiom 1 independence axiom: Each of solution is a recommendation to make a specific change to a system for the purpose of eliminating technical contradictions. Contradiction analysis is the fundamental step to apply 40 inventive principles, one of the knowledge base tools. It is obvious that this integration should not result in a technical contradiction, that is a coupling. This corollary is a consequence of both Axiom 1 and Axiom 2.

A Comparison of TRIZ and Axiomatic DesignThe Triz Journal

The Axiomatic Design approach to the execution of the above activities is based on the following key concepts: Corollary 6 Largest Tolerance Specify the largest allowable tolerance in stating functional requirements. Ov are two types of contradictions: Required function analysis is the first step to use this knowledge base to look up the recommendations for accomplishing the objective.

Decouple or separate parts or aspects of a comparuson if FRs are coupled or become interdependent in the proposed design. The needs of the customer are identified in customer domain and are stated in the form of required functionality of a product in functional domain.

Support us If you like the TRIZ Journal, please help us by donating towards domain space, admin and technical support. Where, P is the probability of successfully satisfying the functional requirements.

On the other hand, if the tolerance is too dexign, then the error in assembly may accumulate such that FR cannot be satisfied. TRIZ, based on a systematic view of technological world, provides techniques and tools, which help designers to create a new design idea and avoid numerous trails and errors during a problem solving process.

Achieve the Right Design. No corresponding tools are found in TRIZ. Seventy-six Standard Solutions were developed for solving standard problems based on the Patterns of Evolution of Technological Systems. In general, any properly functioning system can be modeled with a complete triangle as shown in figure 5.


Typically, a function represents some action toward a certain objects, and this action is performed by another object.

These patterns can be employed for conscious development of technological system and inventive problem solving, replacing the inefficiencies of blindly searching. Axiomatic design is a general methodology that helps designers to structure and understand design problems, thereby facilitating the synthesis and analysis of suitable design requirements, solutions, and processes. In equation 1 and 2[A] and [B] are called design matrix.

Iterations between FR-to-DP mapping and the functional decomposition suggest a zigzagging between the functional and physical domains. At each layer of the hierarchy, two axioms are used to assess design solutions. Invention Machine Lab 2.

Successful innovative experience shows that both problem analysis and system transformations are important to problem solving. The second axiom is the information axiom and it establishes information content as a relative measure for evaluating and comparing alternative solutions that satisfy the independence axiom. However, in many cases, such physical decomposition may be the best way of solving the coupling problem.

Thus it is not obvious how or where to apply TRIZ knowledge base tools to aid the problem solving. Since it becomes increasingly difficult to manufacture a product as the tolerance is reduced, more information is required to produce parts with tight tolerances. Integration design features into a single physical process, device or system when FRs can be independently satisfied in the proposed solution.