Consider the following three-step process with rework. The first resource takes 5 minutes per unit, the second 3 minutes per unit, and the third 2 minutes per unit. After the third step, 60% of all units have to be reworked. For that, they have to revisit the second and third resources. In that case, the processing times are the same as the first pass. Moreover, rework also always fixes the problem. Assume each resource has one worker.
a. Where in the process is the bottleneck?
b. What is the capacity of the process?