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Servicing the federation: the case for metadata harvesting

Simeoni, F. (2005) Servicing the federation: the case for metadata harvesting. Lecture Notes in Computer Science, 3232. pp. 389-399. ISSN 0302-9743

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The paper presents a comparative analysis of data harvesting and distributed computing as complementary models of service delivery within large-scale federated digital libraries. Informed by requirements of flexibility and scalability of federated services, the analysis focuses on the identification and assessment of model invariants. In particular, it abstracts over application domains, services, and protocol implementations. The analytical evidence produced shows that the harvesting model offers stronger guarantees of satisfying the identified requirements. In addition, it suggests a first characterisation of services based on their suitability to either model and thus indicates how they could be integrated in the context of a single federated digital library.