As is often the case with EA, the answer is it depends. But, like all good architects I’ll start by stating my assumptions.

1) By IT Architecture you mean predominately solution architecture, which you are already comfortable with.

2) By EA consulting you intended to cover the full gambit of architecture.

With these in mind I’d suggest the following.

Enterprise Architecture Planning by Spewak and Hill.
Enterprise Architecture as Strategy Ross, Weil and Robertson.

These should position you for planning EA.

Then a little closer to the metal I’d suggest
An Introduction to Enterprise Architecture by Scott Bernard and Dynamic Enterprise Architecture by Wagter et. al to help with project governance.

Finally ORourke, Fishman and Selkow’s book Enterprise Architecture, Using the Zachman Framework, because solution architects typically don’t get EA.

Thanks in Advance.

Mridul.

Perhaps you could gives us your thoughts on the DM and TS approaches in more detail? It’s obviously a space in which you’ve accumulated some knowledge.

One of the goals of the book was to bring architectural concepts to the technology layer (networks, storage, workstations, etc.), where they are NOT normally applied by the architectural frameworks that are out there; that is the reason for focusing on that topic in Part 2 (the book clearly states that is comprised of TWO parts — so no surprise there to anyone that looks at the Table of Contents.)

Having written several books, I very often state in my Preface the following concept: No one can learn a topic in all its glory from a SINGLE book — read this book (of mine), see its approach and focus, and then go out and buy/read 10 books!

DM/May 2010.