Address standardisation
Honest coverage rather than optimistic coverage.
Scope is settled in advance so the size is never a surprise. Anything inherited from a source is tested rather than assumed. Delivery includes a plain statement of what the file will not do.
Franchise handling
Separating independently owned sites from company-owned ones where the evidence allows.
Format and encoding
Files prepared so they load first time, with the character handling settled up front.
Recency statement
Saying how old each part of a file is, so decisions about what to use are made with that in view.