Computer Science – Digital Libraries
Scientific paper
2003-05-14
Computer Science
Digital Libraries
Erroneous title in PostScript version fixed, two figures added
Scientific paper
Numerous systems for dissemination, retrieval, and archiving of documents have been developed in the past. Those systems often focus on one of these aspects and are hard to extend and combine. Typically, the transmission protocols, query and filtering languages are fixed as well as the interfaces to other systems. We rather envisage the seamless establishment of networks among the providers, repositories and consumers of information, supporting information retrieval and dissemination while being highly interoperable and extensible. We propose a framework with a single event-based mechanism that unifies document storage, retrieval, and dissemination. This framework offers complete openness with respect to document and metadata formats, transmission protocols, and filtering mechanisms. It specifies a high-level building kit, by which arbitrary processors for document streams can be incorporated to support the retrieval, transformation, aggregation and disaggregation of documents. Using the same kit, interfaces for different transmission protocols can be added easily to enable the communication with various information sources and information consumers.
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