The [[TRIZ]] methodology includes 40 inventive principles designed to help solve technical problems creatively. Here they are: 1. **Segmentation**: Divide an object into independent parts. 2. **Taking Out**: Separate an interfering part or property from an object. 3. **Local Quality**: Transition from uniform to non-uniform structure; make each part of an object function in the best way possible. 4. **Asymmetry**: Change the shape of an object from symmetrical to asymmetrical. 5. **Merging**: Combine identical or similar objects, or assemble identical or similar parts to perform parallel operations. 6. **Universality**: Make a part or object perform multiple functions; eliminate the need for other parts. 7. **Nested Doll**: Place one object inside another; make one part pass through a cavity in another. 8. **Anti-Weight**: To compensate for the weight of an object, merge it with other objects that provide lift. 9. **Preliminary Anti-Action**: If it will be necessary to do an action with both harmful and useful effects, this action should be replaced with anti-actions to control harmful effects. 10. **Preliminary Action**: Perform actions beforehand so that they can be done more easily at the desired time/place. 11. **Beforehand Cushioning**: Prepare emergency means beforehand to compensate for the low reliability of an object. 12. **Equipotentiality**: In a potential field, limit position changes (e.g., change operating conditions). 13. **The Other Way Round**: Invert actions used to solve a problem (e.g., instead of cooling an object, heat it). 14. **Spheroidality—Curvature**: Replace linear parts with curved ones; use rollers, balls, spirals, and domes. 15. **Dynamics**: Allow characteristics of an object or environment to change for optimal performance at each stage of operation. 16. **Partial or Excessive Actions**: If 100% of a task is hard to achieve using a given method, use "slightly less" or "slightly more" of the same method instead. 17. **Another Dimension**: Move into two- or three-dimensional space; use multi-level composition; tilt/rotate objects/parts. 18. **Mechanical Vibration**: Use oscillation/vibration instead of static forces; increase frequency/amplitude if needed. 19. **Periodic Action**: Instead of continuous action, use periodic/pulsed action; if already periodic, change frequency/amplitude/duty cycle. 20. **Continuity of Useful Action**: Carry on work continuously; eliminate idle/interrupting actions/stages/transitions. 21. **Rushing Through (Skipping)**: Conduct harmful/dangerous operations at high speed. 22. **Convert Harm into Benefit (Blessing in Disguise)**: Use harmful factors/environmental effects positively. 23. **Feedback (Retroaction)**: Introduce feedback loops for control and optimization. 24. **Mediator (Intermediary)**: Use intermediaries/carriers/buffers between incompatible components. 25. **Self-service (Self-organization)**: Make objects serve themselves by performing auxiliary functions. 26. **Copying (Replication)**: Replace complex systems with simpler copies/models/prototypes. 27. **Cheap Short-Lived Objects**: Replace expensive durable items with inexpensive short-lived alternatives. 28. **Replacement Of A Mechanical System**: Replace mechanical systems with optical/electrical/magnetic fields 29. **Pneumatics And Hydraulics**: Use gas/liquid properties instead of solid structures 30. **Flexible Shells And Thin Films**: Replace rigid structures with flexible shells/thin films 31. **Porous Materials**: Use porous materials to allow gas/liquid passage 32. **Color Changes**: Change color to identify features and improve visibility 33. **Homogeneity**: Objects interacting same material/environment homogeneous 34. **Discarding And Recovering**: Discard/remove reusable components and recover them later 35. **Parameter Changes**: Change physical state/concentration/flexibility/temperature etc... 36. **Phase Transitions**: Utilize phase transitions to achieve desired results 37. **Thermal Expansion**: Utilize thermal expansion properties materials design solutions 38. **Strong Oxidants**: Employ strong oxidants to enhance chemical reactions 39. **Inert Atmosphere**: Create inert atmosphere to prevent unwanted reactions 40. **Composite Materials**: Combine multiple materials to create composite solutions