1. Norman's law of product development

• "The day a product development cycle starts it is above budget and behind schedule."

2. Design for people v/s design for activities

• Design for people: result may be wonderful for intended audience, mismatch for others. - Design for activities and the result will be usable by everyone.

3. Jakob Nielsen - Rule of 5

• Adequate to speak with 5 customers

4. "If every decision is questioned, nothing would ever get done. If decisions are not questioned, there will be major faults."'

5. "Attractive things work better"

6. There are 3 levels of processing -

(a) Visceral response

• Comes before emotion
• Lizard brain
• Visual aesthetic to drive visceral response

(b) Behavioral response

• Action is associated with an expectation
• Some sort of a feedback loop

(c) Reflective response

• Slow, cognitive and deep

#Prod-Mgt