The document discusses a distribution center that was facing issues with shipping orders on time. Picking time was identified as a major contributor to order processing delays. By changing features of the push cart used for picking, picking time was reduced from an average of 13.9 minutes to 8.3 minutes, saving 5.6 minutes per order and improving order fulfillment. The case study demonstrates applying the DMAIC process of define, measure, analyze, improve, and control to solve the distribution center's shipping issues.

1. Tinnarat Suwanna Master of IM
Industrial Engineering CMU.

2. A ware house or building use to stocked
products to be redistributed to retailers,
to wholesalers, or dealers.
Tinnarat Suwanna Master of IM
Industrial Engineering CMU.

3. The distribution center having problem about
shipping.
- Have to delivered in 24 hours, be on time.
- Time is the most effective factor of order fulfillment
process, be on time is their responsibility.
- The customers may unhappy and switch to other
distribution if takes long time.
-
Tinnarat Suwanna Master of IM
Industrial Engineering CMU.

4. Tinnarat Suwanna Master of IM
Industrial Engineering CMU.

5. Tinnarat Suwanna Master of IM
Industrial Engineering CMU.

6. - Picking time is a largest contributor to order processing
delays.
Tinnarat Suwanna Master of IM
Industrial Engineering CMU.

7. 3 humps show different groups of picking time.
- average time at the end of the week is 13.9
minutes
Tinnarat Suwanna Master of IM
-
Industrial Engineering CMU.

8. Know the problems : the push car
- Know how to solve : change its feature
- Know the result : work better , save time
-
Tinnarat Suwanna Master of IM
Industrial Engineering CMU.

9. - show only 1 hump, unimodal contribution
- the average time is 8.3 minutes
- save 5.6 minutes for order fulfillment process
Tinnarat Suwanna Master of IM
Industrial Engineering CMU.

10. The DMAIC theory explains how to solves the problem
in this case study.
1. Define (D) Define the scope and set objectives in project charter.
2. Measure (M) Measure the current state process map such as
process steps, process time, lead time, WIP, etc from the work
place
3. Analyze (A) Analyze current state, i.e. value and non-value
added processes, bottleneck constraint and process efficiency.
4. Improve (I) Improve process by designing a future state map.
5. Control (C) Control and hold the gain with metrics to monitor
results over time.
Tinnarat Suwanna Master of IM
Industrial Engineering CMU.