Hi,
I have sourced some good audit questionnaires from about.com.
HR Audit can be of 2 types:
Internal - within HR Dept.
External - how the Organization is serviced by HR Functions/services.
Start with placing a proposal plan as you will need Mgt buy-in.
1. Overview - Where your Company stands today, historical overview of how it has aligned with its Vision/mission/strategies.
2. Objectives of proposed HR Audit (not more than 5 max).
3. Strategy Implementation road map. If you have Visio software, it will help to make a graphic flow chart with a timeline.
4. Report Submission: (Timeline, deployment of resources).
5. Recommendations - supported by gap analytics.
6. Follow up - ensure that there is an evaluation of the implementation of recommendations (yearly/biennial or quarterly based on solutions provided by you).
For the questionnaire, I am developing one; I will share once done. Check out about.com; they have very good ideas.
All the best.
Kind regards,
Depti
(This is my first response to the site, and I look forward to mutual learning).