This week, I’ve been looking at metadata registries, coming with up a solid list of registries to evaluate and thinking about the best ways to evaluate them. While there is plenty of literature that evaluates metadata quality, so far, in the literature I have not seen any studies that specifically evaluate the registries, so I have been trying to find literature that evaluates other similar technologies, such as online catalogs or digital libraries.
Here are some of the registries that I am beginning to evaluate:
LOV (Linked Open Vocabulary): http://lov.okfn.org/dataset/lov/index.html
Open Metadata Registry: http://metadataregistry.org/
Dublin Core Metadata Registry: http://dcmi.kc.tsukuba.ac.jp/dcregistry/
National Information Exchange Model: http://tools.niem.gov/niemtools/home.iepd
EPA, Data Element Registry Services: http://ofmpub.epa.gov/sor_internet/registry/datareg/home/overview/home.do
As I’ve been exploring these I have been thinking of ways to create a rubric for evaluation. Some of the repeated themes are:
The goal for the following week is to complete the evaluation of several of these registries and create a list of questions for the metadata providers.