Tag Archives: TGN

Collections Online update: Mapping

Mapping the collections
This week we added a new feature to Collections Online, our first efforts to map our collection objects, specimens and other resources.  As you browse the collection, the Related Places section at the right of the page will generate a map of the places related to the collection item or resource – just click on the “show map” link to open up the map for that page.

Collections Online mapping

 

For Humanities collections we are mapping where an object was made, depicts, was influenced by or refers to. We can map these because we catalogue our collections geographic associations using the Getty Thesaurus of Geographic Names, which often include the latitude and longitude of the place described. That means as we catalogue our collections as part of our acquisition, inventory or research, we are geo-coding the objects at the same time, at least down to the closest geographically named place.

There are limitations to this approach, for example it doesn’t go down to street level, and of course many of our collection objects are recorded simply as being made in “New Zealand”,  the coordinates for which hover above the centre of the country. Not exactly accurate, but may provide some context for some objects. We’ll try to work through some of these issues, but they are inevitable for some of our objects, as we simply don’t have any more specific information about where they were produced. 

Here’s a few examples of the mapping working in the different parts of Collections Online (don’t forget to click the “show map” link to the right of each page):

  • Objects: Mapping the distribution of the Commonwealth countries referred to in this poster
  • Objects: Mount Taranaki Try zooming in on the map and switch it to satellite view
  • Themes: Tapa styles across the Pacific
  • Places: For the TGN place records themselves, well, we show where the place is! E.g. don’t know where Waipawa is? Now you do!
  • Person pages: Pictorialist photographer Richard Sharrell, born in Graz, Austria, died in Wellington, New Zealand.

For Natural environment, we’re using the map references (or more recently GPS coordinates) recorded as part of the collection of specimens on field collection trips.  For example, this snail was collected on the Te Ringa track, not far from Russell in the Far North.

At this stage we can only map one object, specimen or resource at a time (though they may have multiple places related). Next step is to map multiple specimens, objects etc as this will help understand the distribution of a particular species, or the various places an artist worked for example. We’ll also look at how to try to work with more pin point geo-coding for non-named places, more like what you are used to on Google maps or Street View.  But we hope this first step provides at least some more context to the collections and the people and stories that surround them.

Collections Online tour; part 4, Places and Categories

Carrying on our tour of our recent Collections Online release. Previously we’ve discussed Objects, Topics and People. Today; Categories and Places.

When we document our collection objects and related knowledge we use controlled vocabulary to describe the type of objects, the subjects and concepts related, the materials they are made of and the techniques used. We use a couple of excellent thesauri from the  J. Paul Getty Trust and Library of Congress, and a few we’ve worked on ourselves.

Using controlled vocabularies means that as curators and collection managers go about their work of researching and documenting our collections, they are using consistent terminology which create relationships between the object they are working with and other objects and topics in the collections without having to know about those other objects. This makes “like” objects much easier to find.

By using these thesauri we are using terminology that makes our data more findable and shareable, nationally and  internationally. Of course there are quite a few concepts and words that are peculiar to New Zealand, so we add those into the appropriate place, into the appropriate thesaurus. Thesauri also have broader and narrower relationships between terms which allows you to browse around related content, there’s a couple of examples below. Alternate names and spellings for terms in the thesaurus also means content is more “findable”.

We are also developing our own classification systems for objects from our Taonga Maori and Pacific Cultures collections, and are looking at other existing classifications which could also help refine our descriptions. It’s an ever-evolving area, but the more we work at it, the more accurate and accessible it makes our collections.

For a more in-depth explanation of  thesauri and controlled vocabulary, try this presentation from Murtha Baca of the Getty Vocabulary Program, from the Special Libraries Association 2008 conference.

OK, so now onto how this actually translates into Collections Online.

Categories
These are thesaurus terms used to describe and relate our objects and topics. In our Collections Information System we use the Getty’s Art and Architecture Thesaurus to describe object types, materials, techniques, periods and styles. We use the Library of Congress’ Thesaurus for Graphic Materials I to describe subjects.

Because the thesaurus is hierarchical you can browse through broader and narrower concepts, possibly finding and learning about categories or ideas you didn’t know about. Interested in rifles? Note they are part of the broader category “long guns”; click on that link and see all the long guns, then browse back down to shotguns, and carbines and muskets. Or maybe try the subject category Theatrical productions. See the descriptive notes from the Getty and Library of Congress, as well as related terms, alternate spellings or names, again making it easier to find the objects you might be interested in.

Shadows

A few more categories to start you off:

Places. For this we primarily use the Getty’s Thesaurus for Geographic Names. Places cover where people are born or die, and places that objects depict, were made at, or are influenced by. Like Categories, Places are hierarchical, so you can browse through countries, regions, towns and cities, and see objects, people and topics related to those places. Try Hawke’s Bay. From there you can browse down to Napier, Hastings, or some of the smaller places in Hawke’s Bay and see objects from our collection that relate to those places.

Our natural environment specimens aren’t currently available via place browsing, as they have historically used a different place name system. However this is not an uncommon problem, and we (and others) are looking at how best to resolve that. We also we have a few tricks coming up that will help bring the humanities and natural environment collections closer through mapping, more on that later.

 Tauranga

See what depicts, was made, or refers to these places:

Some of you may be asking where tagging fits into this. We’ve got a few ideas that we’ll discuss on the blog a bit later.

Next entry in this Collections Online introduction series: Linking out

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