Survivorship Rule
Two systems hold different addresses for one customer, both updated this month. Deciding which one the merged record shows is not a technical question.
Two systems hold different addresses for one customer, both updated this month. Deciding which one the merged record shows is not a technical question.
The name suggests a true version that existed all along. What it is: the output of a process, correct exactly to the extent that the process was right.
Five systems each hold a customer record and none of them is wrong. MDM is the decision about what to do with that, not a product that removes it.
Follow records from several systems through blocking, scoring, clustering, and survivorship, and see how thresholds, chaining, and corrections decide merge quality.