Abstract: A method and system for managing data sharing sessions is provided. A data-sharing session is managed with a computer system. The data-sharing session has a set of software systems participating therein. Requests are maintained for the software systems for sets of requested data. Values are stored for shared data items received from the software systems in the data-sharing session. The shared data items are resolved to at least one of the sets of the requested data using semantic descriptions provided for the shared data items and the requested data. The software systems requesting the at least one set of requested data are notified whenever updates to the values of the shared data items are available. The data-sharing session is destroyed if there is one of an absence of activity and an absence of one of the software systems having a particular characteristic in the data-sharing session.

Abstract: A method and system for sharing data between software systems is provided. A graph data structure is maintained in storage of a computing device. The graph data structure has data items and relationships therebetween that are semantically described. A request received from a first software system is stored. The request is for the value of requested data that is semantically described, and an address declared by the first software system. The requested data is semantically resolved to at least one of the data items in the graph data structure. The address is called, and the value of the one data item is passed to the first software system when the value of one of the at least one data items is updated.