Decision Maker

The DecisionMakerConfig element of the Threshold file allows you to specify how the Manager Service evaluates query results. When the master index application processes an incoming record, it compares the new record against existing records in the database and assigns a matching weight between possible matches with the incoming record. The master index application uses the values that you specify in this section to determine how to handle records that fall within certain matching weight ranges. Records with a matching weight above the duplicate threshold are treated as potential duplicates; records with a matching weight above the match threshold are treated as potential duplicates or assumed matches, depending on the value of the OneExactMatch parameter and the number of records with a matching weight above the match threshold.

For the default Decision Maker, you can configure the parameters described below.

• OneExactMatchThis parameter specifies logic for assumed matches. If OneExactMatch is set to true and there is more than one record above the match threshold, then none of the records are considered an assumed match and all are flagged as potential duplicates. If OneExactMatch is set to false and there is more than one record above the match threshold, then the record with the highest matching weight is considered an assumed match and the rest are flagged as potential duplicates.

• SameSystemMatchThis parameter indicates whether the master index application will match two records that originated from the same system whose matching weight falls above the match threshold. If SameSystemMatch is set to true, no assumed matches are made between records associated with the same system. If SameSystemMatch is set to false, assumed matches can be made between records associated with the same system.

• DuplicateThresholdThe duplicate threshold specifies the matching probability weight at or above which two records are considered to potentially represent the same object. Records with matching weights between the duplicate and match thresholds are always flagged as potential duplicates. A thorough data analysis combined with testing will help determine the best value for the duplicate and match thresholds.

• MatchThresholdThe match threshold specifies the matching probability weight at or above which two records are assumed to be a match and are automatically merged in the master index database.