Which document-extracted facts require the most reviewer corrections before a prepared file is usable?
Evaluate an owner-approved synthetic document set against a frozen fact-and-source answer key.
What we could measure together
Measure: Material extracted facts corrected during professional review (corrections/reviewed fact).
Freeze eligible work, observation window and acceptance criteria with the owner; retain incomplete work and exceptions.
Acceptance boundary: Do not upload real tax returns or identifiers; extraction quality does not establish tax correctness.