As promised I would give you a chapter a time on TOGAF, here is chapter 46.
Chapter 46 displays the way in which an Architecture can be established from a TOGAF perspective. Start with a requirement, create a vision, set out objectives to achieve for your organization, create an architecture practice, implement Architecture Development Method (ADM), and keep on going in cycles to continuously improve, which ADM will help you achieve. The chapter focuses on the essence of Business, Data, Application and Technology Architecture, by giving a brief description and stating one would need these. Call to action is to start with Part II, which I have so far skipped, and covers the phases briefly.