Approved design proposal

The overall structure of the experience, agreed with the people who will build and fund it.

Where it comes from

Activity: Present vision. From the 2010 list: Framework and overall structure. Flow diagrams. Initial sketches and wireframes. Design walkthroughs. Collaboration with development.

The spec (to be worked)

Part	What goes here
Inputs	What this artifact is made from
The skill that makes it	The steps an agent or a person follows
Shape	A fixed template the next skill can read
How it's checked	What has to be true before it counts as done
Next	Form and behavior spec

This artifact is a skeleton. Fully worked specs come one at a time, and the changelog records each one.