Certification discussion background.

Hello QAWG Crete folks

I've been working on a W3C certification activity proposal, really
exploratory for now, but I thought it would give you good background
materials for our Crete discussion at the end of Day 1 (Monday)
 http://www.w3.org/2003/04/certif.htm

This is a member only visible document and a WG private document as
well.