I wonder if there is support for defining the displayLabel attribute
for the subject element in MODS?

Some databases have keyword fields in various categorizations. In an
archeology database, for example, a particular database may have
several specific keyword fields: the cultures associated with a
resource, the materials used in artifacts, the sites associated with a
resource, etc.

When mapping such data to MODS subject/topic (or other subject
elements), it would be useful to have displayLabel available to retain
the categorization of the source data. For example:

   <subject displayLabel="artifact material keyword">
      <topic>ceramic</topic>
   </subject>

   <subject displayLabel="artifact decorative style keyword">
      <topic>animal</topic>
   </subject>

   <subject displayLabel="archeological site keyword">
      <geographic>Galaz</geographic>
   </subject>

Joe Altimus
Arizona State University Libraries