Projects starting with small
focus group are expanding, some of them are struggling with limited resources
and, of course, popularity of users. No doubt that some of them have decided
to share the burden. From now on Schema registry, MetaLib and Dublin Core
Metadata Observatory are going to work closer together to maximise their
capacities to provide exhaustive service for a boarder audience.
has dual dedication to provide a forum for metadata schema designers in
Europe and to inform schema implementers about the status and proper use
of new and emerging metadata standards. Metadata Watch reports help designers
to use what is already there, preventing them from reinventing the wheel.†
The Schemas registry design is on a
good way. The intention of this registry is to publish 'namespace schemas'
and 'application profile schemas', as well as information about projects,
standards, tools and guidelines. Distinction between 'namespace schemas'
and 'application profile schemas' has been discussed. Itís been suggested
that a namespace schema contains all elements defined for a particular
namespace, it is an entity itself. An 'application profile' is a schema
identifying the use of elements from one or more namespaces in a particular
application, with additional constraints. .†
The technical basis for the Schema
registry will be RDF Schemas and open source software, EOR-toolkit, which
is being developed. Be aware to check the registry in March for some new
implementations at http://www.schemas-forum.org/registry/.
Schemas have send out a questionnaire
on User requirements Guidance material. If you react immediately you can
ask the questionnaire of Juliana Faure at firstname.lastname@example.org.
Metadata Server at the State and University Library at Gottingen, Germany
(SUB) has a couple of registry activities based on Dublin Core under investigation.
One of them is called MetaLib with MetaGuide, which is a gateway to information
resources on metadata issues, and Metaform, a database for metadata formats
with a special emphasis on the Dublin Core and its manifestations as they
are expressed in various implementations. This initiative is not limited
on European standards, but operates on international level focusing on
library and science-sectors. Needless to mention; Schemas and MetaLib share
certain interests, and combining them could be of great benefit to both
Moreover CEN MMI-DC workshop http://www.cenorm.be/isss/Workshop/metadata-observatory/Home%20Page.htm
has planned a web based European Observatory focusing the relationships
between Dublin Core and other metadata activities. All these three activities
mentioned above will elaborate in the future.†
Another registry activity recently
emerged is called SWAG http://purl.org/swag/,
the Semantic Web Agreement Group. The intention is to create a strong infrastructure
for the Semantic Web and work with various members of the Web community
to ensure that data remains interoperable.†
SWAG's current focus is the compilation
of the SWAG Dictionary and the creation of new vocabularies. They invite
those who are interested in helping to catalog, define and connect the
terms of the Semantic Web to join SWAG and assist in their work. Subscribe
to the SWAG development list by sending a blank email to email@example.com
There are other interesting European activities,
like DESIRE registry http://desire.ukoln.ac.uk/registry/
focusing on the development of a European Service for information on research
and education. Also Dublin Core builds and manages their own important
vocabularies. These projects don't necessary overlap, but offer a different
perspective for an existing problem. As Rachel Heery states 'Some may want
to be scoped by 'content considerations', such as to concentrate on a particular
subject domain (e.g. eduacational metadata schemas), some may be interested
in 'publishing' the schemas in use a particular regional area.'
An example outside of Europe is
Alberta Library www.thealbertalibrary.ab.ca
in Canada. They
are in the process of designing a web-based metadata registry for the purpose
to provide information about metadata implementations in the province of
Alberta, Canada. The idea is to promote the sharing of metadata expertise
in the Alberta community with a longer-term view toward interoperability
and project collaboration.