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How does address matching work in ArcView 3.x?
ArcView applies a probabilistic approach for address matching. This is the likelihood or the confidence of agreement of a field matched against another field. A street address can contain a number of fields such as a house number, prefix direction, street name, suffix direction, and ZIP Code. Each field may have a different probability of finding a match. By setting the probabilities for each field, a weight can be calculated. A composite weight is computed by summing the individual weights for all field comparisons. The composite weight provides users a reference to how well a record is matched. ArcView users can set the minimum match score so that ArcView will match a record against a candidate that has a score higher or equal to the minimum match score and is the highest among a set of found candidates.