If nothing was unclear or difficult, say so. Skip questions about steps you did not experience; use not applicable where appropriate.

What changed in the product?
Which availability condition was unclear?
What source reference was missing?

Author notes / illustrative keys where applicable:
1. Read for change scope. Keep the specific explanation in the respondent’s own words rather than converting it into an unexplained overall satisfaction score.
2. Read for availability. Keep the specific explanation in the respondent’s own words rather than converting it into an unexplained overall satisfaction score.
3. Read for reference. Keep the specific explanation in the respondent’s own words rather than converting it into an unexplained overall satisfaction score.