For past few weeks I have had the pleasure of working with Adrian (he is a Principle in Architecture and Strategy Team), during this time we have had numerous discussions about what should make an Enterprise Architecture. Surprisingly we have been in violent agreement all the time. He shares the same view as me EA is more that IT it should encompass all aspects of an organisation including manual tasks. Often when we focus too much on IT aspect is when we miss the flow on effects manual tasks have on IT dependent processes.
Adrian being more experienced than I am (having been Chief Architect for 3G at Vodafone in UK), has written a simple book on the EA framework that he has developed during his career. I would recommend it to anyone considering some light reading on the topic.
"An Enterprise Architecture Development Framework: The Business Case, Framework and Best Practices for Building Your Enterprise Architecture" : by Adrian Grigoriu