TRIZ is a structured inventive problem-solving approach that uses patterns of technical contradiction, resources, and solution principles to generate breakthrough ideas.
Definition
TRIZ, the Theory of Inventive Problem Solving, is a structured method for solving difficult technical and design problems. It focuses on contradictions, available resources, patterns of invention, and principles that have solved similar problems in other fields.
TRIZ is useful when ordinary brainstorming produces incremental ideas but the problem requires a more inventive shift.
History
TRIZ was developed by Genrich Altshuller and colleagues through analysis of patent patterns. They observed that inventive solutions often follow recurring principles, especially when resolving contradictions without compromise.
When to Use
Use TRIZ when a design or process improvement faces a contradiction, such as needing higher strength with lower weight, faster throughput with lower damage, or greater safety without reduced usability.
Step-by-Step
- Define the problem and desired ideal result.
- Identify technical or physical contradictions.
- List available resources in the system and environment.
- Use TRIZ principles or contradiction thinking to generate solution concepts.
- Translate abstract principles into practical options.
- Screen options for feasibility, risk, and customer value.
- Prototype or test selected ideas.
- Standardize and protect learning where appropriate.
Examples
- Design: A component must be lighter but still withstand load.
- Process: A machine must run faster without increasing defects.
- Safety: A guard must improve protection without slowing necessary access.
Common Pitfalls
- Using TRIZ jargon without a clear contradiction.
- Skipping process observation and facts.
- Generating clever ideas that do not meet requirements.
- No prototype or verification.
- Ignoring manufacturability and maintainability.
- Using TRIZ when simpler root cause tools would work.