Attribute selection
Records with provenance, not records with volume.
Work begins where the description stops being ambiguous. Anything inherited from a source is tested rather than assumed. Nothing is enriched from a source that cannot be named.
Format handover
Delivery in the structure your systems already accept, tested on a sample so nothing needs reworking afterwards.
Supply assessment
Saying plainly where the available data stops, including when it stops short of the brief.
Classification check
Verifying categories against the underlying description rather than trusting a label applied upstream.