When I trained internal auditors on how to audit our site's processes, part of the training was the audit preparation aspect. However, please allow me to take a step back and explain the foundation of our audit checklists.
Within our system, I had developed an audit checklist that addressed the requirements of ISO 9001 and ISO 14001. It was divided into the clauses and set-up as 'yes/no' questions that were, essentially, the requirements or " shall's " written in plain english.
Beneath each question, in italicized font, were sample evidences that could be found within our system. These samples were not all inclusive, but were to serve as guidance to the auditors on what to look for and, in a way, help them to frame their questions.
There were also checkboxes to be completed indicating if the processes (and, let's face it, the auditees' responses) were
Satisfactory,
Opportunity for Improvement,
Unsatisfactory or
Not applicable. A result of O or U would indicate that an Opportunity for Improvement Report or Nonconformance Report would be an output of the audit.
On the far right, however, was a column for comments and any additional prep work that the auditors wished to do.
And this brings us back to their training...
To ensure that our internal audit (which, while process based, was conducted annually as one large system audit for both ISO 9001 and ISO 14001) addressed
ALL requirements, it was required that this checklist be used by all auditors for all of their work.
A matrix - developed by me as part of our management system development - showed how processes and clauses were applicable. So, let's say and auditor was assigned to audit the Human Resources process. The matrix would show which sections of the checklist (and thus the standards) were applicable to this process.
The auditor would review the requirements and, in the comments section, write questions that were specific to HR and in common english and meaningful to the auditor...if the auditor felt this was needed.
Some of the auditors had enough experience that they can simply look at the requirements and frame "tea time" questions like:
- What are your responsibilities?
- How do you know that?
- What do you do if....?
The newer auditors, as part of their training, would take these checklists and write out their questions in the comment section leaving room for answers to be recorded, as well.
This process not only helped the auditors to prepare but also demonstrated that our audit covered all processes and all requirements of the standards.