REORGANIZATION OF THE PRINCIPLES IN THE TRIZ CONTRADICTION MATRIX
 

The contradiction matrix is the powerful tool of Theory of Inventive Problem Solving (TRIZ). Currently it catalogues 39 engineering parameters on the axes "Undesired Effect" versus "Feature to Improve". The matrix’s cells contain a few principles that should be considered for improvements of one parameter without degradation of another one. Commonly 40 different principles are used, and there is an attempt to increase them to 50. I’ve shown that some of traditional and additional principles are not independent from each other. The possibilities to unite these principles and to explore number of the engineering parameters are discussed. 

AN ESTIMATION TOOL FOR THE EVOLUTION OF TECHNICAL SYSTEMS

The evolution is TRIZ backbone and can be presented as familiar S-curve for "Main Characteristic" versus "Time". A calculation of the patent rate versus time provides an effective tool for a technology forecasting. The bell curve of this dependence has 7 stages with different distributions of patents from 5 levels classification.