Open issues (2)
Metadata quality:
Standards often deal with metadata semantics, but
not always with 'content rules'
Recent experience with use of unqualified Dublin
Core by OAI data providers suggests that
metadata quality varies widely, e.g.:
DC underutilized, e.g. 5 of 15 elements used 71% of
the time, many records have just 'title' and 'creator'
elements (Ward, 2003)
Some quality problems with records being imported
before their refinement by libraries (Halbert, 2003)
Authority control, de-duplication, etc.