 |
 |
Hi Jeanne, I'll take a look at that, thanks! Yes, if we were starting from scratch I'd try my best to get a consistent unit for extent, and then provide a free text area for any other descriptive information. I had an extent recently that was '81'. This is somewhat tricky. They couldn't remember what it meant! I do think its like so many things within an archive description - maybe a more descriptive entry for extent worked pretty well pre Internet, but now it would be so, so much more preferable to have consistent units. cheers, Jane. Begin forwarded message: From: Jeanne Kramer-Smyth <[log in to unmask]<mailto:[log in to unmask]>> Subject: Re: Ordering or sorting by extent? Date: 13 May 2013 15:29:18 BST To: <[log in to unmask]<mailto:[log in to unmask]>> Reply-To: Encoded Archival Description List <[log in to unmask]<mailto:[log in to unmask]>> Dear Jane, I did some work on this years ago for my ArchivesZ visualization project. My goal was ton convert all extent values to linear feet. As you know, this is easier said than done. This blog post is an example of the struggles I had with extent in EAD: http://www.spellboundblog.com/2009/05/13/archivesz-data-challenges-university-of-texas-san-antonio/ You can find more of these by looking through this list for posts titled 'Data Challenges': http://www.spellboundblog.com/category/archivesz/ My ultimate plan for a future in which something like ArchivesZ was scaled up to handle many institutions was to request that they provide mapping of their extent vocabulary to linear feet. It would be up to each institution to examine their own extent naming practices and figure out the best way to covert their values to linear feet so the values could be aggregated and used for sorting. Jeanne Kramer-Smyth Electronic Records/Archives Officer Library & Archives of Development http://www.linkedin.com/in/jkramersmyth Blog: http://www.spellboundblog.com<http://www.spellboundblog.com/> Twitter: http://twitter.com/spellboundblog On Mon, May 13, 2013 at 9:06 AM, Jane Stevenson <[log in to unmask]<mailto:[log in to unmask]>> wrote: Hi Merrilee, I'm interested to know if you get any answers to this. We tried to work with Extent on our Linked Data project, but in the UK at any rate there is no standard vocab for extent, so it would have required a good deal of work. Here's a sample of the extent field content: 1,500+ items 100+ items 1 box c 170 dissertations c 80 slide files approx 10,000 files 1 box and 3 oversized items. 2 filing cabinet drawers 1 box 13 boxes 1 box 1 box 1 box and 15 slides 930+ items 1 box 2 boxes 1 box 1 box 1 box 1 box 2 files and 50 slides 1 box 1 box 1 box 1 box 1 box 1 box 2 boxes 4 hanging files of slides, 1 volume 5 boxes 5 boxes 17 box files 0.007 cubic metres One Volume Small, rectangular piece of lined paper One piece of paper One page from a publication Small, rectangular piece of plain paper Small, rectangular piece of plain paper Photograph Postcard Compliment slip A4 size paper One sheet One sheet Small photograph Small photograph Thin, rectangular piece of paper Three A4 size sheets of lined paper Small press cutting Compliment slip Small slip of paper Three small pieces of lined paper One sheet, A5 size Rectangular piece of paper, approximately 20cm in length. Excerpt from a magazine Newspaper cutting Two small slips of paper Photograph Small slip of paper Small slip of paper Postcard Thin piece of paper Thin strip of paper A slip of paper Photograph Photograph Photograph A cutting from a publication Slip of paper Slip of paper Slip of paper Large photograph Large photograph Large photograph We tried the idea of URIs for standard units - a box, a folder, a file, a photograph, but as you can see, quite a few things just don't fit into this! cheers, Jane On 8 May 2013, at 23:09, "Proffitt,Merrilee" <[log in to unmask]<mailto:[log in to unmask]>> wrote: > Hello! Does anyone out there have a discovery interface that allows user to sort results by extent? Will you share? > > Thank you! > > Merrilee > > Merrilee Proffitt, Senior Program Officer > OCLC Research > 777 Mariners Island Blvd Suite 550 > San Mateo, CA 94404 USA > +1-650-287-2136<tel:%2B1-650-287-2136> > Merrilee blogs at hangingtogether.org<http://hangingtogether.org/> > Follow me on Twitter @merrileeiam >