ETB is building
an active network for transfer and exchange of educational resource metadata
The network connects
existing national repositories and uses a new approach based on the tried and
trusted NNTP protocol (Network News Transfer Protocol). Metadata records are
posted and transfered through a 'News Feed'. Each National repository has full
editorial control over the submission and acceptance of entries, and will maintain
the local formats and conventions.
This poses technical challenges to the software development. ETB will use the
resource description framework (RDF) to address the issues of cross-walking
and mapping. A major added feature offered by ETB will be the integration of
a multilingual thesaurus for classification. This thesaurus will also be encoded
in RDF format. EUN will operate one central repository which processes and indexes
all records submitted on the news feed. It is the responsibility of WP10 to
design and build this repository.
There will be
1. An efficient thesaurus driven search client allowing accesses to any metadata
2. A submission and moderation interface allowing teachers and other professionals
to submit entries directly through EUN.
far in WP10 is as follows:
1. An RDF parser has been written to decode the incoming metadata records and
thesaurus data. These will be stored in and efficient back end database for
fast searching. The connections to the NNTP network are being tested.
2. A prototype version of the data entry and moderation interface has been written
and is under testing.
A first version
of the full system is on schedule for the beginning of 2001.