► Describe a time where you made a mistake in your work. How did you find the mistake?

► What tools do you use to check your work? Why do you use these tools? Provide an example of where you have applied these.

► How do you go about ensuring quality when there are time pressures? Describe a time where you have managed to produce quality work when you were under pressure.

► Describe a time where you found an error that was not immediately obvious.

► Have you ever discovered a mistake that was overlooked by everyone else? How did you find this? What was the result?

► Tell me about a time that you were confused by a customer's request. What steps did you take to clarify things?

► Have you ever needed to persuade someone above you that they had made a mistake? What did you do in this situation? How did it turn out?