Hi,
What is actually layered process audit?

Is it the same with the manufacturing checklist in which I can use during Manufacturing Audit?
Please advise.
TIA
Best regards,
Raff
Layered Process Audits are a Customer Specific Requirement from some customers. Hopefully, it is different than your Manufacturing Process Audits.
Manufacturing Process Audits ideally should be an in-depth review of the details of a particular manufacturing process. Most companies have trained auditors take a control plan and walk through all the checks, all the gages and documents, etc.
Layered Process Audits are promoted or required by certain customers as an additional activity. The framework typically is a one or two page checklist which is a fairly short overview of a particular product being produced. The "layers" come from different levels of managers participating in the same audit. Floor Supervisors, Area Managers, all the way up to top managers are intended to audit the same activity. The perceived benefit comes from the idea that different ranks of managers will see the same activity from different perspectives and might see weaknesses or improvements that others didn't spot. There is also the aspect that higher managers with greater authority are involved, which could bring additional benefit.
So, the two audits audit the same work cell, but in significantly different ways. However, you are free to adapt the techniques to suit your needs, because there is not much written as to mandatory approaches. Most is guidance type information, except customer requirements training such as DCX provides.