Kofax Getting Started with Ascent Xtrata Pro - Manual (Page 130)

Extraction
Ascent Xtrata Pro User's Guide 111
The field’s valid state is set to True, when the minimum confidence value is reached
and the distance to the second best alternative’s confidence has at minimum the
selected value. The default value for the confidence is 80% and the default value for
the distance is 10%. For example if the best result has a confidence of 81% and the
next best alternative has a confidence of 75%, the best result will not be used even
though it meets the minimum confidence value. Since the minimum distance is set to
10%, the next best alternative must have a confidence of less than 71% before the best
result will be accepted.
Field Inheritance
Classes can be structured hierarchically. Fields and their properties are inherited
from parent classes by derived classes.
Figure 4-4. Derived Classes and Their Fields
Names of derived fields are grayed in a derived class. The Definition Class column in
the Extraction Design panel displays the name of the class where the field or locator
is defined.
The design panel initially displays the name of the class in which the field, or the
locator, was defined. If the locator that is associated to the field is changed in the
derived class, the change is reflected in the Definition Class column.
If the field settings (thresholds) are changed in a derived class, the name of the
definition class is changed in the display to the derived class.
The field in the derived class remains gray to indicate that its name cannot be
changed. Only the names of fields that are not derived can be changed.