1.2.5.1.10 Flag Key

The flag key, which is defined in the case source, specifies the data fields which are not part of the case key or the alert key, but whose contents are likely to be significant to the match decision. That is, information in these fields is likely to influence a reviewer's decision as to whether or not this alert is a true match or a false positive. Changes to this information can therefore be used in Case Management Reception Rules to trigger a re-review of the alert the next time the matching process is run.

If a flag key contains fields which are not relevant to the match decision, it will cause alerts to be re-raised which do not really require a further review, increasing the burden on the reviewers. On the other hand, if flags which should be included in the flag key are omitted, significant changes to the data may be missed. The design of the flag key is therefore important to the ongoing accuracy of the screening solution.