7.9. The Second Best Discount Store is considering rearranging its stockroom to improve customer service. Currently, stock pickers are given customer orders to fill from six warehouse areas. Movement between these areas is noted in the flow matrix below:

A B C D E F A — 1 4 2 0 3 B 0 — 2 0 2 1 C 2 2 — 4 5 2 D 3 0 2 — 0 2 E 1 4 3 1 — 4 F 4 3 1 2 0 —

Activity Average Time, Sec.

1. Serve salad and dessert 10 2. Pour drinks 30 3. Serve entree 60 4. Serve vegetables 20 5. Tally and collect payment 40 176 Part Two Designing the Service Enterprise Using the initial layout below, perform an operations sequence analysis to determine a layout that minimizes total flow between nonadjacent departments. Calculate your flow improvement.