Abstract: Systems and methods are provided for providing document data. A host application is displayed on an interface of a computer system, where the host application includes an interface field that is linked to a document field of documents in a document management system. An enabler application captures a field value for the interface field and an operation identification from the host application. A context rule database contains a plurality of context rules that are accessed based upon the operation identification, where the context rule identifies a type of document that is relevant to the identified operation. A document management system is configured to be queried based on the field value and the relevant document type, where the document management system is configured to return document data based on said query, and where the interface of the computer system is configured to be updated based on the returned document data.

Abstract: A method for overload control between a first application and a second application based on Diameter protocol, comprising: when the first application is overloaded, overload control information is set and sent to the second application; and the second application takes an action according to the overload control information. The invention also provides a Diameter protocol based network element comprising an overload control initiating device configured to: set overload control information to be sent to an opposite network element communicating with the network element when overload happens. In addition, the invention further provides a Diameter protocol based network element comprising an overload control response device configured to: when receiving overload control information sent by the opposite side, take an action according to the overload control information.