Abstract: Methods and apparatus, including computer systems and program products, related to declarative synchronization of shared data. One method includes receiving one or more changes to data maintained by one of multiple computer programs having respective local copies of the data, identifying an event characterizing synchronization of the data maintained by the computer program with the other computer programs (e.g., with a local copy managed by the other computer program), and initiating synchronization of the changes with one of the other programs having respective local copies (e.g., with the local copy managed by the other program) in response to the event occurring. The event can be characterized by an annotation. Identifying an event can include reading a property of a data object (e.g., in a data object graph of shared data).

Abstract: Methods and apparatus, including computer systems and program products, related to declarative synchronization of shared data. One method includes receiving one or more changes to data maintained by one of multiple computer programs having respective local copies of the data, identifying an event characterizing synchronization of the data maintained by the computer program with the other computer programs (e.g., with a local copy managed by the other computer program), and initiating synchronization of the changes with one of the other programs having respective local copies (e.g., with the local copy managed by the other program) in response to the event occurring. The event can be characterized by an annotation. Identifying an event can include reading a property of a data object (e.g., in a data object graph of shared data).

Abstract: A computer-based method and system for classifying and locating media content is provided. In preferred embodiments, a dynamically modifiable, structured vocabulary system is used to drive a media classification and search system. An exemplary embodiment of the media classification and search system includes media content unit classification services, a media content unit search engine, and one or more data repositories, including typically a media content unit collection, metadata, the vocabulary, and a term-to-media content reverse index. The structured vocabulary provides a classification system, whose structure and relationships can be altered independently of the media content being classified, thus enabling tuning of the system without needing to reclassify data. The use of the structured vocabulary also increases the rate of success and efficiency in matching search requests to locate media content.