The outcome metric is the term used for the main question in your survey. Usually it is the overall satisfaction or NPS (loyalty) question. For instance: On a scale of 1 to 10, how satisfied were you overall with your stay at the Grand Hotel?
Potential Driver is the term used for performance rating questions in your survey which you think influence your primary question or outcome metric as it is known.Continuing the example above, we may ask respondents to rate aspects of our hotel, such as cleanliness, food, swimming pool, staff, etc. But which one should we invest in? Which one would give us the best ROI?