<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><br><div><div>On Feb 16, 2015, at 1:58 PM, Brad Westbrook <<a href="mailto:brad.westbrook@lyrasis.org">brad.westbrook@lyrasis.org</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Hi, Steve,<br><br>Digital object components are for modeling and structuring complex digital objects, that is, digital objects in which rendering of the intellectual content requires two or more digital files. <br><br>There's a couple of examples in our teaching instance at <a href="http://demo.archivesspace.org">demo.archivesspace.org</a>. Feel free to look at:<br><br><a href="http://demo.archivesspace.org:8081/repositories/2/digital_objects/2">http://demo.archivesspace.org:8081/repositories/2/digital_objects/2</a><br><br>http://demo.archivesspace.org:8081/repositories/2/digital_objects/45<br><br>http://demo.archivesspace.org:8081/repositories/2/digital_objects/6 <br><br><br>Hope this helps.<br><br>Brad W.<br><br><br></blockquote><div><br></div><div><br></div><div>Thanks, Brad. This helps me figure out the possible encodings, but I’m more confused that ever about how we should be encoding things. </div><div><br></div><div>[A] The three cases above could be classified as:</div><div><br></div><div> [1] A letter with two page images. </div><div> [2] Multiple objects ( a letter and two photographs ) [ Shouldn’t this be better modeled as separate digital objects and/or archival objects ? ] </div><div> [3] A complex object with different parts and representations. </div><div><br></div><div><br></div><div><br></div><div>[B] In our EAD files that I’ve imported into ArchivesSpace, typically multipage letters have been encoded as a <daogrp> </div><div>with each page URI encoded as a <daoloc> . Single page images are usually just encoded as a <dao>. </div><div><br></div><div>In our best practices guidelines ( as well as some others I’ve looked up on the web ) there are actually two usage</div><div>examples for <daogrp> : multiple page images where the @role attribute indicates “page 1”, “page 2” … etc. , ( same as case A#1 above)</div><div>and different representations of the same physical object, where @role indicates “thumbnail” , “high resolution” , for example. </div><div>( could be considered a simple version of case A#3. ) </div><div><br></div><div>I don’t think we have used the 2nd case in our legacy EAD finding aids, however we have been using Fedora for all of our new </div><div>digital material, where we not only have methods for different image displays ( thumbnail, full-size, scaled images ) but we also have</div><div>a separate Fedora Digital Object for the multipage letter, with links to the separate page image objects. </div><div>( Correction: It looks like we may have a few where <daogrp> contains links to multiple page images and a TEI representation. )</div><div><br></div><div><br></div><div><br></div><div>[C] Those <daogrp>’s import into ArchivesSpace as a single digital object with file_versions for each <daoloc>. </div><div> There doesn’t seem to be any mapping between digital_object_components and any EAD elements. </div><div> The only mention in the mapping I saw was this note "<font face="Calibri" size="3">Should these end up being components?” below. </font></div><div> I edited one of my digital_objects to change it to using digital_object_components for each page instead of file_versions,</div><div> and it didn’t appear to export any of those URI’s in the EAD. So it looks like digital_object_components are not yet fully supported. </div><div> </div><div><br></div><div><table border="0" cellpadding="0" cellspacing="0" width="2153" style="font-family: Times; border-collapse: collapse; table-layout: fixed; width: 2153pt; position: static; z-index: auto;"><tbody><tr height="15" style="height: 15pt;"><td class="xl70" width="352" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 352pt;"> </td><td class="xl70" width="283" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 283pt;"> </td><td class="xl70" width="189" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 189pt;"> </td><td colspan="5" style="padding: 0px; font-size: 12pt; font-family: Calibri, sans-serif; vertical-align: bottom; border: none; white-space: nowrap;"></td></tr><tr height="30" style="height: 30pt;"><td height="30" class="xl86" width="249" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-left-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; height: 30pt; width: 249pt;"><daogrp></td><td class="xl70" width="352" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 352pt;">EACH <daoloc> within <daogrp> treated as individual file_versions within a single digital_object instance.</td><td class="xl70" width="283" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 283pt;">instance.instance_type = digital_object</td><td class="xl70" width="189" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 189pt;">Should these end up being components?</td><td colspan="5" style="padding: 0px; font-size: 12pt; font-family: Calibri, sans-serif; vertical-align: bottom; border: none; white-space: nowrap;"></td></tr><tr height="15" style="height: 15pt;"><td height="15" class="xl86" width="249" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-left-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; height: 15pt; width: 249pt;"> @role</td><td class="xl70" width="352" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 352pt;"> </td><td class="xl70" width="283" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 283pt;">instance.digital_object.file_versions[].use_statement</td><td class="xl70" width="189" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 189pt;"> </td><td colspan="5" style="padding: 0px; font-size: 12pt; font-family: Calibri, sans-serif; vertical-align: bottom; border: none; white-space: nowrap;"></td></tr><tr height="15" style="height: 15pt;"><td height="15" class="xl86" width="249" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-left-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; height: 15pt; width: 249pt;"> @href</td><td class="xl70" width="352" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 352pt;"> </td><td class="xl70" width="283" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 283pt;">instance.digital_object.file_versions[].uri</td><td class="xl70" width="189" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 189pt;"> </td><td colspan="5" style="padding: 0px; font-size: 12pt; font-family: Calibri, sans-serif; vertical-align: bottom; border: none; white-space: nowrap;"></td></tr><tr height="15" style="height: 15pt;"><td height="15" class="xl86" width="249" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-left-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; height: 15pt; width: 249pt;"> @label</td><td class="xl70" width="352" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 352pt;"> </td><td class="xl70" width="283" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 283pt;">instance.digital_object.file_versions[].title</td><td class="xl70" width="189" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 189pt;"> </td><td colspan="5" style="padding: 0px; font-size: 12pt; font-family: Calibri, sans-serif; vertical-align: bottom; border: none; white-space: nowrap;"></td></tr><tr height="15" style="height: 15pt;"><td height="15" class="xl86" width="249" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-left-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; height: 15pt; width: 249pt;"> <daodesc></td><td class="xl70" width="352" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 352pt;"> </td><td class="xl70" width="283" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 283pt;">instance.digital_object.title</td><td class="xl70" width="189" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 189pt;"> </td><td colspan="5" style="padding: 0px; font-size: 12pt; font-family: Calibri, sans-serif; vertical-align: bottom; border: none; white-space: nowrap;"></td></tr><tr height="15" style="height: 15pt;"><td height="15" class="xl86" width="249" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-left-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; height: 15pt; width: 249pt;"> </td><td class="xl70" width="352" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 352pt;"> </td><td class="xl70" width="283" style="padding: 0px; color: windowtext; font-size: 12pt; font-family: Calibri; vertical-align: top; border-style: none solid solid none; border-right-width: 0.5pt; border-bottom-width: 0.5pt; border-right-color: windowtext; border-bottom-color: windowtext; width: 283pt;"> </td></tr></tbody></table><div><br></div></div><div><br></div><div>[D] So it seems we have at least two different use cases to represent, </div><div> one way of encoding in EAD where you can indicate use-case/semantics with @role ( but you need to standardize on some meaningful tags, </div><div> and while ASpace will preserve those @role values, I don’t think it applies any semantics to the values. ) </div><div> and two or more ambiguous ways to represent them in ArchivesSpace, only one of which is fully supported for EAD import/export. </div><div> ( I have not yet had a chance to look into how digital_objects, file_versions, and digital_object_components are exported in MODS and METS ). </div><div><br></div><div><br></div><div>So I’m actually more confused than when I started. </div><div><br></div><div>I would be happy to hear comments from others about how they plan to use and encode digital objects in ArchivesSpace. </div><div><br></div><div><br></div><div><br></div><div>— Steve Majewski / UVA Alderman Library</div><div><br></div><div><br></div><br><blockquote type="cite"><br><br>-----Original Message-----<br>From: <a href="mailto:archivesspace_users_group-bounces@lyralists.lyrasis.org">archivesspace_users_group-bounces@lyralists.lyrasis.org</a> [<a href="mailto:archivesspace_users_group-bounces@lyralists.lyrasis.org">mailto:archivesspace_users_group-bounces@lyralists.lyrasis.org</a>] On Behalf Of Steven Majewski<br>Sent: Monday, February 16, 2015 12:54 PM<br>To: Archivesspace Users Group<br>Subject: [Archivesspace_Users_Group] What is the role of digital_object_components ?<br><br><br>What is the role of digital_object_components ? <br><br>I have a number of digital objects imported into my system, some with several files, but zero digital_object_components .<br><br>The digital_object schema doesn't seem to have a link to a digital_object_component, however<br>the digital_object_component does have a digital_object link. The hierarchy seems to be the opposite<br>of what the names would suggest to me. <br><br>- Steve Majewski<br><br>_______________________________________________<br>Archivesspace_Users_Group mailing list<br><a href="mailto:Archivesspace_Users_Group@lyralists.lyrasis.org">Archivesspace_Users_Group@lyralists.lyrasis.org</a><br>http://lyralists.lyrasis.org/mailman/listinfo/archivesspace_users_group<br></blockquote></div><br></body></html>