In Data Express, you can correlate data elements if their value distributions are similar. To do this, you must first associate a fingerprint, which represents the desired distribution, to a class.
This fingerprint becomes the prototype that is used determine the class assignment for other data elements. If the prototype and the fingerprint for a data element are deemed similar based on a calculated confidence value, the data element is also associated with the prototype class.
By highlighting the SAMPCUS class description in the All Classes pane and then by dragging the fingerprint for the COD-CUS data element to the Class Samples cell, the SAMPCUS class is then assigned to the fingerprint. This fingerprint becomes the prototype. This action also associates the SAMPCUS class to the COD-CUS data element.