White hat
  • Neutral and objective
  • Objective facts and figures

Red hat
  • The emotional view

Black hat
  • Cautious and careful
  • Looks for weaknesses

Yellow hat
  • Optimistic
  • Positive thinking

Green hat
  • Creativity and new ideas

Blue hat
  • Control
  • Organisation of the thinking process
  • Use of other hats

 

and
and
and

 

Reference

Six thinking hats - Edward de Bono