Mansoor, To be very honest I do not carry list of questions with me when I go to clients. The idea was to make it easy for new comers by giving them a list.
When you know the what options are available in Oracle then you can ask relevant questions on the fly.
For example:
Client: We need to view invoice line details in GL.
Possible options:
1-Drill down,
2-Switch the transfer form AP to GL mode from summary to detail.
Consultant: Would you like to be able to drill down from journal line to the source invoice line or would you like to view the invoice line details in your GL reports?
Client: Drill down
Consultant: We do not need to perform additional setup. We can conduct a small training session where we can show your staff how to do drill down.
OR
Client: We would like to see details in GL reports.
Consultant: We would need to switch AP to GL flag to detail. Some testing needs to be performed to make sure all is working well. We would need a STAGE environment where can change the flag and do the testing. Then we can do the change in production.