Does anyone know what the pinyin of a theory in the aerospace field of the former Soviet Union is?

Russia analyzed nearly 2.5 million high-level invention patents in the world, and after integrating the principles and rules of multi-disciplinary fields, it established the TRIZ (Theory of Invention Problem Solving) theoretical system, which can speed up the process of creating inventions. And get high-quality innovative products.

This is a modern design method. . . .