I know this book is old, many critics will say it is too wordy and all, but if you did the Togaf certification, you know about the business, data, and technology architecture. You were told what they are but was never really shown an example of how it looks like. This book gives you that example of how the design artifacts of that architecture look like and from those examples, you could get the gist and a better understanding of how the architectural artifact would/could look like. This book is also good for the aspiring Architect to know that there is also a human/political element in architectural consulting work and you really have to deal with it. The book gives you ways in which you could possibly deal with it, and hey Zachman wrote the forward to the book so how bad could it be? Just give it a go.