Final answer:
An andon's purpose is to provide a visual signal for real-time problem identification in a process. It is used in lean manufacturing to promptly address issues, ensuring efficiency and minimal disruptions.
Step-by-step explanation:
The purpose of an andon is indeed to provide an immediate visual signal to workers and management indicating when and where problems are occurring in a manufacturing or production process. This system, part of the lean manufacturing philosophy, is designed to ensure that any issue, such as equipment malfunction or a quality control problem, can be instantly identified and addressed. By highlighting the exact location and nature of a problem, employees can take swift action, helping to minimize disruptions and maintain workflow efficiency.