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5.1.5. TRIZ Principles: Substances and Fields

How To Invent (Almost) Anything > 5. Basic TRIZ > 5.1. TRIZ Principles > 5.1.5. TRIZ Principles: Substances and Fields

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In all devices there are two basic elements: parts of the system, or substances, and the medium through which they interact, or fields. The substances can include parts of the system, such as wheels and cutting edges, and also external elements such as the atmosphere and a rock that is being drilled. The field may be mechanical connection, electromagnetic, hydraulic, chemical, acoustic, etc.

Problems often occur because either the parts interact inefficiently or they interact when they should not. By identifying these ‘substances’ that interact and the field through which they interact, you can discover where improvements are required and hence a focus for invention.
 

Other principles

• 5.1.1. TRIZ Principles: Function
• 5.1.2. TRIZ Principles: Harm
• 5.1.3. TRIZ Principles: Ideality
• 5.1.4. TRIZ Principles: Trimming
• 5.1.5. TRIZ Principles: Substances and Fields
• 5.1.6. TRIZ Principles: Evolution
• 5.1.7. TRIZ Principles: Contradictions

Other sections in this chapter:

• 5.1. TRIZ Principles
• 5.2. Using Contradictions and Principles
• 5.3. Simplifying TRIZ Principles
• 5.4. TRIZ Thinking

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