Andon is a japanese term that refers to a system of notification which is widely used today. The system provides management, maintenance or other employees of a quality issue, line stop or process problem. The andon system utilizes sensory notifications to alert others of a problem and more importantly the need for support. The alerts are are normally activated manually by a worker who observes the issue or by automated means that senses an abnormality somewhere in the process.
Examples: Some examples of the andon system can be seen below.
What do the Colors Mean?
Red = Line Stop "Need Help!"
Yellow = Need Attention/Support.
Green = Running
Some Andon system incorporate a blue light in the system too, which sometimes means an issue is being worked on or contained and other times may trigger the need for material. Companies should establish color systems that are appropriate for their specific needs.