C Contradiction I IFR O Operational time Operational zone P Physical effect Princple "Beforehand compensation" Principle "Blessing in disguise" Principle "Copying" Principle "Curvature increase" Principle "Dimensionality change" Principle "Dynamic parts" Principle "Equipotentiality" Principle "Hurrying" Principle "Mediator" Principle "Merging" Principle "Nested dolls" Principle "Optical property changes" Principle "Porous Materials" Principle "Segmentation" Principle "Separation" Principle "The other way around" R Resources S System transformation T Technical System Trend "Coordination" Trend "Dynamization" Trend "Geometrical evolution" Trend "Mono - bi - poly" Trend "Multifunctionality" Trend "Segmentation" Trend "Trimming" TRIZ		In the site materials you may come across unknown terms or words used in an unknown context. They are mainly TRIZ terms. You may read about them in detail here, and find short explanation in this section. And a little quick-witted girl Nyusha treats the basic notions of TRIZ in her own way.