1. A system comprising: a monitor to maintain a list of document components for a document class and an associated frequency of requests for the document components; a selector to select a plurality of document components with a highest frequency of request; an aggregator to aggregate the plurality of document components to create a base file for the document class; and a condenser to associate a requested document with a document class, in an automated manner, if a delta-difference between the requested document and the base file for the document class is less than a threshold value.