• To plan based on 80% of sales units need to improve the flow of several thousands of
different components leading to several thousands different or one messy VSM. Is
VSM an appropriate technique to develop the lean implementation strategies under
high product mix environment?
• VSM does not have any facility to consider shared resources in presence of many
different parts.
• Scheduling the high product mix to produce any part when the next process needs the
parts is complicated, particularly when long setup time is required.