One of the problems with making all relationships "URI" is that this is hugely time-consuming. Keying "Ken Smith, producer; Joe Jones, director; Emily Simms, presenter" is easy. Finding a record for "Ken Smith" if one doesn't already exist? Impossible level of work. We need to be able to say things in strings because we cannot possibly make all the metadata into data. Only for "traced" headings would this be possible, and we don't typically trace these all these pieces of data. Kate Kate Bowers Collections Services Archivist for Metadata, Systems, and Standards Harvard University Archives [log in to unmask] 617.496.2713 voice: (617) 384-7787 fax: (617) 495-8011 web: http://nrs.harvard.edu/urn-3:hul.eresource:archives Twitter: @k8_bowers