As you walk this flow on the shop floor, you need to collect data that is important for deciding what the future state will be. So a data box is drawn under each process box. After mapping several current and future states you will know instinctively what process information you need. The list at right will help you get started.
At Acme Stamping, we have the following information to record in the data box under each processing step: the cycle time (time that elapses between one part coming off the process to the next part coming off in seconds the changeover time to switch from producing one product type to another (in this case switching between left-drive and right-drive brackets); the number of people
To help you get started here is a list of typical process data :
• c/T (cycle time)
• c/o (changeover time)
• uptime (on-demand machine uptime)
• EPE (production batch sizes)
• number of operators
• number of product variations
• pack size
• working time (minus breaks)
• scrap rate