Following this John and I had an email discussion and together we have improved the tripartite explanation of source analysis:
I’ve kept contextual knowledge as it was but changed the other two bits. I’ve renamed ‘spotting the tiny details and big picture’ to go to site Source Literacy. This seems to make more sense to me and encompasses more of what I meant. The other point has been tweaked to http://littleridgefarm.com/wp-login.php Historical Analysis as John rightly pointed out that the model I had was too focused on historians reading sources for information. In this new form this is meant to include the wider skills of analysis including assessing utility.
If you think it could be further improved email me!