TRIZ

TRIZ is a systematic problem-solving methodology derived from patterns in patents. It helps generate inventive solutions by identifying and resolving contradictions in engineering systems.

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Technical contradiction: A conflict in which improving one system parameter worsens another. TRIZ frames many engineering problems as conflicts between parameters rather than isolated defects.
Technical system: An organized set of interacting components that performs a useful function. TRIZ models the object of a problem as a system with functions and interacting parts.
Genrich Altshuller: A Soviet engineer and inventor who founded TRIZ through the study of patents. Altshuller developed the methodology and its early principles from patent patterns.
Inventive problem solving: The structured generation of novel solutions to problems with significant constraints. TRIZ is designed to make inventive problem solving more systematic and repeatable.
Brainstorming: A group ideation method that generates many ideas without immediate evaluation. TRIZ offers structured prompts where brainstorming relies more on open-ended idea generation.
Physical contradiction: A demand that one system element have opposite properties under different conditions. TRIZ addresses this sharper form of conflict by separating the opposing requirements.
Function analysis: A method for identifying useful and harmful interactions among a system's components. It helps locate where a system produces the effects behind a stated problem.
Patent analysis: The examination of patent documents to identify inventions, technologies, or recurring solution patterns. Systematic patent analysis supplied TRIZ with its initial evidence base.
Root cause analysis: Methods for identifying underlying causes of observed problems or failures. TRIZ problem framing can complement causal analysis by exposing conflicting requirements.
Design thinking: An iterative design approach centered on user needs, prototyping, and testing. Design thinking begins with human needs; TRIZ often begins with technical contradictions.