Bringing evidence rather than assurances
A supervisor arriving with a verbal summary produces a conversation about impressions. One arriving with the exception log, the inspection records and the periodic confirmations produces a conversation about specifics. The second is more uncomfortable and considerably more productive, because both parties are looking at the same material rather than exchanging views about how things have felt. Discomfort is not a reason to avoid it; it is usually a sign the review is working.
The most valuable single item is the record of recurring exceptions. Individual issues get resolved and forgotten; the pattern is what identifies whether something structural is wrong. An area appearing four times in eight weeks is a finding regardless of how well each occurrence was handled, and it is the sort of thing that never comes up in a conversation based on recollection. Recollection is a poor instrument for finding patterns, and the pattern is what matters.
