From the Wikipedia entry The Open Group Architecture Framework
The Open Group Architecture Framework (TOGAF) is a framework for enterprise architecture which provides an approach for designing, planning, implementing, and governing an enterprise information technology architecture. TOGAF has been a registered trademark of The Open Group in the United States and other countries since 2011.
TOGAF is a high level approach to design. It is typically modeled at four levels: Business, Application, Data, and Technology. It relies heavily on modularization, standardization, and already existing, proven technologies and products.
I saw a notice of this publication today and created a local copy for your convenience (the offical copy requires free registration and login). The downside is that over time, this copy will not be the latest version. The latest version can be downloaded from: www.opengroup.org/bookstore.
You can purchase TOGAF 9.1 here: http://www.opengroup.org/togaf/. I haven’t read it but at $39.95 for the PDF version, it compares favorably to other standards pricing.