2. FACTORS OF COMPLEXITY CONSIDERED
Design
Function; Form; Aesthetics; Material Choice
Manufacturing
Production; Process; Resources
Learnability
Pre-requisite knowledge; Learning Curve
Usability
Ease; Error; Feedback; Satisfaction
Bar further right – Easier learnability or more efficient usability
More scope for design or more complex manufacturing – Bar further left
LEGEND
3. Eraser
Pink Pearl Eraser | Sanford | Illinois
Knead-able Eraser | Faber Castell | Germany
Form|Dimensions Holding|Rubbing
Cleaning|Waste|Friction
Material|Dyes