Documentatio audit

Is that the documents of the SMI are treated according to the requirements of the three ISO standards written separately or integrated?

Answer:

QMS documentation comprises of alldocuments and records required by the standard itself and the documents for which the company determined to be necessary to maintain effective QMS (Quality Management System). All documents that are part of your QMS will be audited and the same document and record control rules should be applied unless the procedure for document and record control states otherwise.

For more information, see: How to structure quality management system documentation https://advisera.com/9001academy/knowledgebase/how-to-structure-quality-management-system-documentation/