Database Evaluator
The
Database Evaluator identifies a database record that matches the input data for a document. Unlike the
Database
Locator, that attempts to match a database record with recognition data from the full page or a smaller region,
the
Database Evaluator uses data from the results of other locators.
A set of conditions assigned to the input subfields need to be met to match a record in the database. Depending on the replacement settings for each field, the Database Evaluator can:
-
Always replace a subfield with the value from the database record
-
Replace the subfield if it partially matches
-
Keep the original subfield value
This evaluator is commonly used with an Advanced Zone Locator providing the input subfields. It is most useful for hand printed forms where the quality of the full page recognition is usually very low.
The extraction type of a Database Evaluator is "group" which means this evaluator has multiple subfields. When the locator is first created no subfields are available so it is necessary to configure the evaluator by selecting a database. Subfields are created automatically for each column in the selected database and you cannot rename any of the subfields. Once subfields are available you can click on individual field links or by click on the Create and Assign Fields button to create and assign all simple fields at once.
Manage a Database Evaluator in the following ways:
-
Map database fields to locator subfields
-
Specify the criteria to match a database record
-
Specify the data returned by the Database Evaluator
The Properties of Database Evaluator window has the following tabs:
Related topics: