Visual management is indeed a part of lean. In fact, it is one of the most important aspects of lean manufacturing.
Visual management is all about making sure that information is conveyed clearly and concisely. This is done through the use of visual aids such as charts, graphs, and other visual cues.
One of the main goals of visual management is to make sure that everyone in the manufacturing process has the same understanding of what is going on. This helps to ensure that everyone is working towards the same goal.
Visual management is a vital part of lean manufacturing because it helps to improve communication, efficiency, and quality.