What do
perl.plover.com
Design Patterns in a textbook,
----
c2.com
Crc Cards on a conference room table and
----
Pages in a Wiki Wiki Web site
---- have in common?
Each is an Artfully Incomplete Specification.
Each asserts some fact or decision while leaving room for complementary or evolving ideas.
Unlike some communication tools, they work well at that Delicious Moment just before a design crystallizes.
They depend upon visualizations, creative imagination, references by name or image, and the involvement of other people or other ideas.
Related
See original on c2.com 