Classical TRIZ and modern TRIZ
A short text from Leonid Chechurin's lecture on Function modeling (https://triz.thinkific.com/courses/ssc), giving classification as below. Classical TRIZ: Ideal final result (IFR) Contradiction analyses Trends of technical system evolution (TESE) Su-Field analysis (Su==Substance==tangible object, Field==intangible object like electromagnetic field, gravity force field) they are strategic, spiritual, they help to see the target to improve the system, but they do not show how, which particular actions to achieve such target....