WALA De Bono's six hats
Red hat: How do I feel about this write now"
Black hat: What are the minuses? What might go wrong? What are the weeknesses?
White hat: What information do we have? What information do we need?
Blue hat: what do we do next? What have we done so far? What thinking is needed? What is our focus?
Green hat: What is possible? What ideas do we have?
