Process mapping shows how work moves from one step to the next. It helps visualize the path, handoffs, and sequence of activities inside a workflow.
A workflow diagnostic goes further. In addition to mapping the process, it examines where delays, rework, bottlenecks, and operational friction occur. It looks at what those issues are costing in time, effort, and performance.
In practical terms, process mapping helps you see the workflow. A workflow diagnostic helps you decide what to fix first, why it matters, and how to improve it.