Theo van Veen, Koninklijke Bibliotheek

The European Library: opportunities for new services

Open Archive Forum, Lissabon, 5-7 december 2002 2

Search and Retrieve via URLs (SRU)

• Initiative from Z39.50 implementers group to offer a low barrier alternative to Z39.50

• Searching via: base-URL ? request with standard syntax• Response: XML conform standard schema • Example URL:

http//krait.kb.nl/cgi-zoek/srw.pl?query=porbase&maximumRecords=1

Demo

With SRU clients/portals can be written as a simple HTML page with javascript and XSL.

Open Archive Forum, Lissabon, 5-7 december 2002 3

Mapping functions with metadata

Open Archive Forum, Lissabon, 5-7 december 2002 4

Functions and services• Search: most fields contribute• record retrieval (presentation,harvesting, linking) : record-id• identification (retrieve object): identifier• description (of object): title, author, subject, description• linking (locate services): identifier, relation, source• multilingual service (translation): title, description, subject• authority service (find main entries): author, subject, type• collection level: descriptive elements, target address, type• navigation (between hierarchy levels): identifier, relation• authorisation (permission criteria): rights• administration (trace usage): dates, record-id• software requirements (e.g.preservation): description• copy cataloguing: all fields• document ordering: identifier, record-id

Functions require metadata ; the presence of metadata should generate access to services.

demo

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