1. A computer-implemented system for dynamically providing a composite source information report whenever source information of a composite object is updated, the composite object including one or more elements, comprising: a computer-implemented subscription handler for receiving a subscription request from a user for subscribing to the composite source information report, parsing the subscription request to identify the user and to generate a subscription query, and storing the subscription query associated with the user in a database; a computer-implemented subscription source information retrieving handler for retrieving the subscription query from the database and retrieving the source information based on the subscription query from the database; means for determining whether the source information has been updated since a last retrieval of the source information; and a computer-implemented composite source information report generation handler for generating a composite source information report based on the source information and providing the composite source information report to the user, if the source information has been updated since the last retrieval of the source information.