This document discusses business architecture and provides guidance on how to approach it. It begins by defining business architecture as the structure and narrative of a business. It recommends starting with the business model and developing capability maps to understand how the business operates. It cautions that business architecture is its own distinct discipline and should not be viewed only as aspects of the business not related to IT. The document also provides advice on looking upward to understand the broader context, downward to implement the business model effectively, and sideways to connect all parts of the architecture. It emphasizes the importance of aligning the architecture to the vision, values, and principles of the enterprise.