Survivorship must keep the oldest account-open date but the newest verified email when records merge. What rule design is required?
Select an answer to reveal the explanation.
Short Explanation
One merge rule doesn’t fit every field. Keep the oldest open date, the newest good email—survivorship can be composite by attribute.
Full Explanation
Survivorship policies often differ by attribute: oldest, newest, most complete, or most trusted source. Composite rules encode that intent; single blunt keep-all-loser, random picks, or emptying critical fields fail golden-record quality.