Wednesday, November 24, 2004

Metadata Authority Description Schema

In preparation for a new MADS draft, there is a "preview" draft".

For reference see Rebecca's message of August 27 (subject: MADS review) accessible from the archive.

There are three changes from the previous version:

  1. Descriptors now allow empty elements, so you can use an xlink attribute (URI) in lieu of a value.
  2. < ref > is replaced with two elements:
    • < related type="earlier | later |parentorg | broader | narrower |other" > and
    • < variant type="acronym |abbreviation | translation | expansion | other" >.
    The high level structure now is:
    • One < authority >
    • Zero or more < related >
    • Zero or more < variant >
    • Zero or one < otherElements > which is a wrapper for one or more "other elements".
  3. All of the MODS elements in the previous MADS draft (e.g. modsNamePart -- namePart from MODS was copied verbatim into MADS and renamed modsNamePart) have been removed, and instead there are references to MODS (e.g. mods:namePart). This requires some changes to MODS, and a draft is available. This is not a proposal for a new MODS version, just an illustration of what needs to be done to MODS to support these MADS references, and this MODS draft is fully compatible with the current version, it simply restructures some of the definitions.

An outline according to the new version is available.

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