Aspects of the disclosed technology enable a knowledge worker to easily and efficiently develop and maintain a comprehension state of a document collection. One aspect of the technology includes a methods, apparatus, and program products that alter a relationship data structure representing a comprehension...http://www.google.de/patents/US20070299872?utm_source=gb-gplus-sharePatent US20070299872 - Method, Apparatus, And Program Product For Developing And Maintaining A Comprehension State Of A Collection Of Information
