Design For Six Sigma Roadmap

Check Sheet (1) for Drawings

Number	Particulars	Yes	No	Action Requred	Responsibility	Date
1.	Is tolerancing correct as per manufacturing capability?
2.	Have all CTQs been identified on the drawing?
3.	Is a bill of material complete and a part of the drawing?
4.	Are reference dimensions identified to reduce inspection?
5.	Are there any specifications specified that cannot be evaluated using known inspection techniques?
6.	Are all material characteristics identified and specified on the drawing?
7.	Are all dimensions that affect fit, function and durability identified and tolerance specified?

Check Sheet (2) for Feasibility

Number	Particulars	Yes	No	Action Requred	Responsibility	Date
1.	Is selected process feasible for manufacture? a. Technically b. Cost wise
2.	What inputs will the supplier need?
3.	Are needed inputs provided?
4.	What is supplier's feedback on achieving critical to quality for process?
5.	Is there any process capability study done on the process?
6.	What tolerance the supplier will be comfortably achieving?
7.	Is supplier capable of measuring Critical to Quality?
8.	Does supplier possess sufficient capacity to handle forecasted production?

Check Sheet (3) for Process Mapping

Number	Particulars	Yes	No	Action Requred	Responsibility	Date
1.	Does flow chart illustrate sequence of production and inspection?
2.	Does flow chart identify all the KPIV and the KPOV of the process?
3.	Have provisions been made to identify and inspect reworked products before use?
4.	Is costing derived from the flow chart?
5.	Is there a separate flow chart for manufacture of tooling?
6.	Are drawings available for tooling?

Check Sheet (4) for Control Plan

Number	Particulars	Yes	No	Action Requred	Responsibility	Date
1.	Is control plan derived from flow chart, FMEA, DOE & critical to quality requirements?
2.	Have all customer concerns been identified on control plan?
3.	Are all critical Xs identified?
4.	Is % contribution of X with respect to Y identified?
5.	Is appropriate statistical control method identified for the critical Xs?
6.	Are material specifications requiring inspection identified?
7.	Does control plan address incoming through processing and assembly, including packing?
8.	Are functional testing requirements identified?

References
1. Advanced Product Quality planning (QS 9000 Manual)
2. Robust Engineering by Taguchi

About The Author
Shree Phadnis is a Master Black Belt at KPMG India. Mr. Phadnis is an ASQ certified Quality Manager and ASQ Certified Quality Engineer. Mr. Phadnis can be reached at shreephadnis@usa.net.

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