Fundamental

Reality

• Time, Space
• Physical, Digital, Psychological

Good:

• Positive, Negative
• Good, Bad
• Better, Worse

Abstraction:

• General, Specific
• Direction

• Before, After (Sequence)

• Group, Ungroup

• Combine, Separate

• Familiar, Unfamiliar

• Series, Parallel

• Goal

• Rule
• Tradeoff

Senses

• See
• Hear
• Smell
• Taste
• Touch

Assorted

• Speed: Slow, Fast
• Strength: Strong, Weak
• Edge: Sharp, Round
• Temperature: Hot, Cold
• Hardness: Hard, Soft
• Brightness: Bright, Dark
• Schedule

Documentation

• Checklist
• Datasheet
• Features
• Block Diagram
• Specifications
• Typical Application Diagram
• Physical Dimensions (item, package)