1. A computer-implemented method, comprising: at one or more computing devices operatively coupled to a database: obtaining classification information representing a classification to be exported from the database, the classification information having information representing a set of one or more classification markings and information representing a set of one or more origin classifications; generating new origin classification information representing a new origin classification, the new origin classification information including information representing the set of one or more classification markings; adding the new origin classification information to the information representing the set of one or more origin classifications to produce information representing a new set of a plurality of origin classifications, the new set of origin classifications including (a) the set of one or more origin classifications and (b) the new origin classification; exporting the classification as export data, the export data including the information representing the new set of origin classifications.