0cc94f64_Top_25_Lean_Tools__How_Does_It_Help_
[Lean Tool] Andon [What Is It?] Visual feedback system for the plant floor that indicates production status, alerts when assistance is needed, and empowers operators to stop the production process. [How Does It Help?] 
Acts as a real-time communication tool for the plant floor that brings immediate attention to problems as they occur – so they can be instantly addressed.
Top 25 Lean Tools
How Does It Help?