QMS Turtle Diagram

Turtle Diagram has to be created for all 16 main QMS processes, as this is a process-oriented approach commonly used in the automotive industry.  It is not one diagram, you need to have all 16 Turtle Diagrams as those processes represent your core business process. Also, processes that are commonly defined by Turtle diagram are Market analyses/customer requirements; Request for quotation/tender; Product emergence process; Product and process verification/validation; Order handling/product manufacturing; Delivery; Change management; Warranty/complaint process; Customer service/customer feedback.  

For more information please read the article:

ISO 9001 the importance of the process approach: https://advisera.com/9001academy/blog/2015/12/01/iso-9001-the-importance-of-the-process-approach/

Dear Mr.Ivan,

Thank you for your explaination. I have one question regarding the Process Capability Study.

Since the 100reading that I take is during Testing Stage, there will be no subgroup.

How to calculate Cp Cpk when this situation occurred? Can I stll calculate the Cp Cpk or just need to calculate Pp Ppk?

Thanks in advance for your consultation.

If I have understood you correctly, the size of your subgroup will be 1. If you have only 1 piece, you cannot calculate standard deviation because there is no standard deviation if there is no more than 1 piece. You will need to have a sample of more than 30 to get valid statistical data.