Six Sigma Application in Healthcare Logistics: A Framework and A Case Study

Table 3

Suggested criteria and average rank of CTQ questionnaire.

Potential CTQ	Average CTQ rank
Average inventory level	4.6
Inventory holding costs	4.2
Number of expired items	4.2
On-time delivery	4.2
Supplier reliability	4.2
Safety stock level	3.8
Number of stock-out incidents	3.8
Actual time to get product from warehouse	3.8
Effect of redundant purchases	3.0
Variability of demand	2.8
Shelf life	2.6
Transporting costs	1.4