Definition
The visualization of process sequences has been shown as a problem-solving tool to make opportunities for improvement visible.
In detail
A Process Map is a visualization tool that draws out a business process in sequence, letting everyone see which steps work goes through from input to output, who is responsible, and where it might get stuck. In a problem-solving system, it is used to make a vague process explicit, helping the team identify Muda, Bottlenecks, and Kaizen opportunities. Unlike a Value Stream Map, a Process Map focuses more on specific steps and logical sequence rather than the flow of materials and information; the glossary has a separate "Flow Chart" entry, and the source lists the two separately though their definitions are nearly synonymous—you can distinguish them by using Flow Chart for Current State and Process Map for should-be state. It typically outputs a chart containing steps, decision points, owners, and time information, serving as a common language for subsequent Kaizen activities.
Example in practice
Before a new production line is launched, the process team uses a process map to outline every step from raw material receipt to finished goods shipment, discovering redundant inspections and long waiting times. The team redesigns the process accordingly, reducing unnecessary steps and clarifying the responsible person for each stage. The result is a clear process flow chart that serves as the basis for standard work and training.