ABSTRACT
The man–machine utilization graph (MUG) is a very useful tool. Just as the work combination table (WCT) can help us identify and analyze improvement opportunities that are related to the individual work components, the MUG can help us identify and analyze opportunities for an entire system or work cell. It allows us to 146better understand how both the workers and the individual process steps impact one another as well as the entire system. It can quickly show the current limits of the system and help us to intuitively identify opportunities and limitations. In addition, the MUG is much less complex than the WCT and therefore easier, faster, and less prone to errors. Sadly, like the WCT, it is also often overlooked by many, which can mean that there are a lot of missed opportunities for improvement. However, for those who are diligent and willing to put the extra effort into developing WCTs and a MUG for their system, the rewards can be well worth the effort.
