Start in OpenEHR

Hi,
I am starting in OpenEHR,

Can you explain the methodology for archetype and tempalte creating from a list of questions, or from a mind maps.

What documentation should I read and in what order?
What are the tools for designing and creating the archetype?
Thank you for your help

For info, I have copied below the replies that Naji has already
received on the implementers list. Thomas suggested he repost here for
better clinical input = more comments welcome.

Tank you Ian

Naji EL FADLY