The "rules of the game" for a brainstorming session
are designed to decrease fear of rejection
and encourage the free flow of ideas.
The use of physical objects and spatial memory is powerful.
It capitalizes on the associative way that human minds work.
Choosing a sharp focus is important;
i've been to brainstorming sessions
where the discussion meanders everywhere
because of a lack of focus.
WEAKNESSES
At brainstorming and discussion sessions i've been to before,
it's very helpful and satisfying to see ideas written up on whiteboards
around the room.
But afterwards, we are stuck with piles of paper
and digital camera pictures of the whiteboards,
and no idea what to do with all of them.
The article doesn't discuss how best to capture the session.
If no critiquing happens during the brainstorming,
then when does critiquing and evaluation happen?
It must happen at some point;
the article neglects to mention how to do so,
and how best to later use the new knowledge that has been generated.