This document discusses process mapping and the differences between process flow mapping and value stream mapping. It defines a process as a group of logically related activities and tasks that transform inputs into specified outputs. Process flow mapping visually depicts the steps in a process, how inputs become outputs, and links to other processes. Value stream mapping considers the whole value stream, identifies non-value added steps between processes, and enables long-term planning, while process flow mapping focuses on a single process, identifies non-value added within the process, and enables shorter-term tactical planning. An example of a process flow map for checking in a paper-based trailer is provided.