White hat:
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reports on the facts of the case - what we know
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Red hat:
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looks at feelings associated with the issue.
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Yellow hat:
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examines the value of ideas or actions, describes benefits
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Black hat:
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looks at challenges and consequences of actions and decisions
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Green hat:
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looks at the alternatives and suggests ideas
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Blue hat:
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summarises the process of the thinking hats and evaluates which type of thinking hat is most useful for the issue into the future
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