It’s a technique that can be used to encourage people to look at a problem from a number of different perspectives, making what might be an overly complex issue a stimulating topic of conversation.

• A great way of systematically looking at an issue from many different perspectives.
• Opens up discussion by giving people permission to say things that they might not otherwise. 
• Helps participants each think about one perspective at a time, rather than trying to manage thinking about all aspects of a topic at once.