Theory of Inventory Problem Solving (TRIZ) 40 Inventive Principles

Principle 1. Segmentation
Principle 2. Taking out
Principle 3. Local quality
Principle 4. Asymmetry
Principle 5. Merging
Principle 6. Universality
Principle 7. "Nested doll"
Principle 8. Anti-weight
Principle 9. Preliminary anti-action
Principle 10. Preliminary action
Principle 11. Beforehand cushioning
Principle 12. Equipotentiality
Principle 13. 'The other way round'
Principle 14. Spheroidality - Curvature
Principle 15. Dynamics
Principle 16. Partial or excessive actions
Principle 17. Another dimension
Principle 18. Mechanical vibration
Principle 19. Periodic action
Principle 20. Continuity of useful action
Principle 21. Skipping
Principle 22. "Blessing in disguise" or "Turn Lemons into Lemonade"
Principle 23. Feedback
Principle 24. 'Intermediary'
Principle 25. Self-service
Principle 26. Copying
Principle 27. Cheap short-living objects
Principle 28. Mechanics substitution
Principle 29. Pneumatics and hydraulics
Principle 30. Flexible shells and thin films
Principle 31. Porous materials
Principle 32. Color changes
Principle 33. Homogeneity
Principle 34. Discarding and recovering
Principle 35. Parameter changes
Principle 36. Phase transitions
Principle 37. Thermal expansion
Principle 38. Strong oxidants
Principle 39. Inert atmosphere
Principle 40. Composite materials
 
References:
1. Source : Triz Journal Article Archive , 1997
2. Author : Ellen Domb

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