Is it true that the organization is left open to adopt one that suits it's organizational needs?
Also I am interested to know the best practices for the numbering system.
Yes, that's right - ISO 9001:2015 does not mandate a specific numbering system for control of documents.
Here is an example of the documented information number structure that has been proven in practice:
1. Abbreviation that identifies the document type in accordance with the Documented information structure adopted by the Organization.
For example:
- QSP = Quality System Procedure.
- QSF = Quality System Form
Example: 7.1- , a group of documents relevant to resources.
3. Index number of the document in the group.
Example: -003 means this is a document #3 in the group.
4. Sometimes it is relevant to give the document’s year of approval in the last part of the id number.
Example: -2017.
QSP 7.5-01-2017 Control of Documented Information
You can find more examples of the QMS documented information numbering on our website in the ISO 9001:2015 Quality System Procedures section
