TRIZ in a Bi-system, Consisting of TRIZ and Lean Sigma
As any system, TRIZ behaves according to the trends of the General Systems’ Theory. According to one of the trends, technological systems evolve in a general direction from mono-systems to bi- or poly-systems. Then the bi- and poly-systems convolute into mono-systems. TRIZ is not an exception to this trend. To date, TRIZ and a modified Value Engineering (VE) function analysis comprise a mono-system of contemporary TRIZ.
At a close review, TRIZ provides qualitative assessment and analysis of the system under consideration. Yet, in a technical system analysis a numerical representation of system’s features, functionalities and problems is very important as it provides a universal assessment of system’s parameters and provides foundation for comparative analysis of the system and its environment.
Therefore, it is imperative that TRIZ is equipped with necessary tools for quantitative assessment of system’s parameters. In the last 8-10 years a number of attempts were made in combining TRIZ with some other methodologies. Most popular are attempts to combine TRIZ with Six Sigma. However, these attempts were made by Six Sigma experts, who are not very experienced with TRIZ and its tools. As a result, TRIZ is placed in a subordinate position to Six Sigma. Most notable is TRIZ application with DFSS – Design for Six Sigma, where some TRIZ tools are utilized for solution of design issues. A more detailed analysis of these attempts will be provided in the body of the paper.
Mark G. Barkan, PhD
Certified TRIZ Specialist
Six Sigma Black Belt