Agreement and disagreement weights

For each match comparison, the matching process calculates an agreement weight and a disagreement weight.

The match weight is derived by using the agreement and disagreement weights established for that column.

If a match comparison agrees for the record pair being compared, the agreement weight is added to the composite weight. The agreement weight is a positive value. If a match comparison disagrees for the record pair being compared, the disagreement weight is added. The disagreement weight is a negative value. Therefore, agreement weights add to the composite weight, and disagreement weights subtract from the composite weight. The higher the score is; the greater the agreement is.

Partial weight is assigned for non-exact or fuzzy matches.

Missing values have a default weight of zero.