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Summary:
- RDF is a simple, graph-based data model for metadata on the web
- RDF has an XML syntax for:
- Exchanging RDF Models
- Embedding RDF Models into web pages
- Advantages over XML
- Data model is agnostic to syntactic variations
- Information from different models and locations can easily be linked
- Some important operations are trivial (i.e. merging two models)
- RDF Schema defines special resources and predicates for defining vocabularies
- Vokabular: Class, SubClassOf, domain, range
- Implicit information can be derived using simple derivation rules
- There is no clear separation between model and schema, schema elements can be part of an RDF model
Three general remarks about documentation:
- The kind of documentation is dependent on its purposes. Order is not an end in itself.
- Questions of documentation are never of an ideological, but of a pragmatic kind.
- Documentation should serve only (and exactly only) one aim: the enhancement of the retrieval of knowledge relevant to your daily work.
Overview and purposes of ordering devices and documentation languages.
BAM, the joint portal for Libraries, Archives and Museums in Germany, considers itself to be a digital memory institution. Currently the portal holds more than 40 million records from a wide range of cultural institutions, some 37 million data sets from six libraries or union catalogs, 2.9 million data sets from eleven archives, 300.000 data sets from twenty museums and 800.000 data sets from other institutions.
These significant differences in numbers of data sets are not only due to the size of the holdings of the participating institutions but also to “cultural differences” between libraries, archives, and museums in creating records and collaborating in union catalogs.
The paper describes those differences from the perspective of the BSZ, the hosting organization of BAM, and a major contributor to BAM, the Foundation Prussian Cultural Heritage (Stiftung Preußischer Kulturbesitz), Berlin. The point of view is specific for the situation in Germany and might differ from the situation in other countries. There are certainly other important issues that are not mentioned here as we chose to take a perspective specific for BAM.
Content:
- Union catalogues in Germany
- Bibliotheksservice-Zentrum: Services
- SWB Union Catalogue: Services
- SWB Union Catalogue: Participating Libraries
- Software: SWB Union Catalogue and ILS
- SWB Union Catalogue: format
- SWB Union Catalogue: conversion tables
- SWB Union Catalogue: data transfer to ILS
- SWB Union Catalogue export: MARC 21 conversion
- MARC 21 export: first experiences (Symphony, Koha)
- MARC 21 export: first test results
- SWB Union catalogue import: MARC 21 conversion
- Z39.50-connection with the cataloguing client
The spell of ubiquitous knowledge. Europeana, a portal to European cultural and scientific knowledge
(2009)
The target of Europeana is to make Europe's cultural and scientific resources accessible for all.
In detail the aims are:
- Providing access to Europe’s cultural and scientific heritage through a cross-domain portal,
- co-operating in the delivery and sustainability of the joint portal,
- stimulating initiatives to bring together existing digital content,
- supporting digitisation of Europe’s cultural and scientific heritage.