This document defines key concepts related to business processes. It begins by defining a business process as a network of connected activities that transform inputs into outputs. It then discusses the types of business processes including individual, vertical/functional, and horizontal/cross-functional processes. The document also outlines the key components of process architecture including inputs/outputs, flow units, activities/buffers, resources, and information structure. Finally, it discusses how well-designed business processes can help organizations achieve their overall performance objectives by efficiently satisfying customer needs.