Scott and Asger, thanks very much for responding. I thought of adding the structMap DS myself, and hearing that someone else has done this already validates that approach. I'm going to tinker with embedding sequences in the RELS-EXT as well.
Mark ----- Original Message ----- > Hello, Mark -- > > We ran into the same problem with sequenced images in a set. Rather > try > to bend RELS-EXT to our will, we decided to create a STRUCT datastream > that contains a METS structmap with the structure of the atomistic > object, including ORDER. This approach has a couple of downsides: it > means some repetition on data in both RELS-EXT and STRUCT, and the > STRUCT datastream doesn't get indexed in the resource index. (But you > could easily index it elsewhere, such as in Solr.) Nonetheless, for > our > purposes this approach worked better, especially as the STRUCT > datastream has numerous other users, being the key datastream that > ties > our atomistic objects together. > > -- Scott > > > On 04/28/2011 04:47 AM, Asger Askov Blekinge wrote: > > Hi > > > > What you have found is one of weaknesses in the Fedora RDF > > structure. > > The normal way, btw, is to have each of the pages declare their page > > number in a literal relation. > > > > Remember, a RELS-EXT relation does not have to be to another object, > > it > > can be literal. > > > > so something like > > > > <rdf:RDF> > > <rdf:Description rdf:about="info:fedora/ThisObject"> > > <myNS:hasPart rdf:resource="info:fedora/TheIssue"> > > <myNS:pageNr>15</myNS:pageNr> > > </rdf:Description> > > </rdf:RDF> > > > > When you do a triple store query, you will then be able to sort > > based on > > the PageNr. > > > > Note, this approach does not guarantee that no the pages will have > > distinct numbers in an issue. > > > > Regards > > > > > > On 2011-04-28 05:47, Mark Jordan wrote: > >> Hi, > >> > >> I'm curious to know what the conventional way of expressing ordered > >> (i.e., numerically sequential) relationships between FC objects is. > >> A typical use case here is a 24-page newspaper issue, where the > >> 'issue'-level object has no page image datastreams but its RELS-EXT > >> datastream points to (using a hasPart assetion) all 24 'page'-level > >> objects (which each have TIFF, JPG, thumbnail, and text transcript > >> datastreams). Each page object's RELS-EXT datastream points to the > >> parent issue object with a isPartOf assertion. > >> > >> In METS, structMap div elements use the ORDER attribute to indicate > >> sequence (for example of the pages in a newspaper issue). Unless I > >> am missing something, the Fedora relationship ontology doesn't > >> express sequence in relationships such as hasPart, and I can't find > >> any reference to order in the FOXML schema or examples. > >> > >> If anyone can point me to some examples or documentation I've > >> missed, I'd appreciate it. > >> > >> Mark > >> > >> Mark Jordan > >> Head of Library Systems > >> W.A.C. Bennett Library, Simon Fraser University > >> Burnaby, British Columbia, V5A 1S6, Canada > >> Voice: 778.782.5753 / Fax: 778.782.3023 / Skype: mark.jordan50 > >> mjor...@sfu.ca > >> > >> > >> ------------------------------------------------------------------------------ > >> WhatsUp Gold - Download Free Network Management Software > >> The most intuitive, comprehensive, and cost-effective network > >> management toolset available today. Delivers lowest initial > >> acquisition cost and overall TCO of any competing solution. > >> http://p.sf.net/sfu/whatsupgold-sd > >> _______________________________________________ > >> Fedora-commons-users mailing list > >> Fedora-commons-users@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/fedora-commons-users > > > > > > ------------------------------------------------------------------------------ > > WhatsUp Gold - Download Free Network Management Software > > The most intuitive, comprehensive, and cost-effective network > > management toolset available today. Delivers lowest initial > > acquisition cost and overall TCO of any competing solution. > > http://p.sf.net/sfu/whatsupgold-sd > > _______________________________________________ > > Fedora-commons-users mailing list > > Fedora-commons-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/fedora-commons-users > > > -- > Scott Prater > Library, Instructional, and Research Applications (LIRA) > Division of Information Technology (DoIT) > University of Wisconsin - Madison > pra...@wisc.edu > > ------------------------------------------------------------------------------ > WhatsUp Gold - Download Free Network Management Software > The most intuitive, comprehensive, and cost-effective network > management toolset available today. 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