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We need a META schema registry!
The Web needs a Metadata registry, IMO.
In HTML, many organisations and individuals are starting to generate
Metadata using the META tag without any agreement as to what the
data means. While I applaud the effort to generate useful metadata,
a proliferation of unregistered types is going to dilute its utility
greatly.
Given that many organisations will want to use private metadata, and that
particular disciplines have their own metadata, a single global repository of
all metadata types is clearly unworkable.
Proposal:
That a top-level registry be set up at an institution such as W3.org,
which would maintain a list of top-level schemas.
Examples of metadata with schemas and subschemas:
<META NAME="DC.Author" CONTENT="Oscar Wilde">
<META NAME="MCF.versionNumber"> CONTENT="1.3b">
<LINK REL="DC.Author" HREF="http://andrew.triumf.ca/~andrew/">
<A REL="MCF.helpPage" HREF="http://some.org/gxt/help.html">Help on GXT</A>
The schemas DC (Dublin Core), MCF (Meta Content Format) etc.
would be registered with the top-level registry. The organisation
registering the schema would be responsible for documenting it.
Anyone using a registered schema would hopefully have read the
documentation first.
Anyone creating a new schema-less metadata type is on their own - subject
to misinterpretation. Some existing ones are pretty well defined, though:
HTTP-EQUIV="Refresh" - Document reload with optional URL
NAME="Description" - Document description for search engines
NAME="Keywords" - Additional keywords for search engines
NAME="Robots" - automated agent control
NAME="Generator" - Added automatically by publishing tools
others aren't so well defined, e.g. "Classification"
Andrew Daviel
TRIUMF, Vancouver Webpages
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