An aerospace manufacturer is evaluating planned changes to their final assembly systems. Their process line has multiple work stations, each with a statement of work consisting of 10 to 20 aggregated tasks. Each task has unique requirements for labor, tools and material handling. The system is schedule driven, so any work not completed at the time the line pulses will be “traveled” downstream. Production policies regarding this traveled work is one of the items to be evaluated during this project. The manufacturing process is labor-intensive with a steep learning-curve, and work in process is costly. Therefore, process improvement in the areas of labor productivity and reduction of work in process is critical.