How do we assess creativity?

I looked for a good definition of creativity to then help with ideas on how to assess. Of course Wikipedia is always fun to look at when looking up definitions and content ideas.


Below is just one of the definitions.
From Wikipedia, http://en.wikipedia.org/wiki/Creativity (4/21/09): "...definition of creativity is that it is an 'assumptions-breaking process.' Creative ideas are often generated when one discards preconceived assumptions and attempts a new approach or method that might seem to others unthinkable."

I agree with Cooke that it is very difficult to assess creativity. Using the above definition for creativity, can we assess mashups and the remix? Is the remix discarding preconceived assumptions? I think you also have to define what is original. Does an original work include the remix of other works? Is a remix truly creative? How does one get credit for work that is a remix of another person's work?

Obviously I have too many questions on this subject and lacking originality to propose a good answer.