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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
In my opinion, in the THREDDS-DLESE framework a major task is to bring together two different Information Communities: the Digital Library community and the geospatial Information Community; therefore, we should consider that "objects" like datasets and catalogues (and so on). are often seen from different perspectives. For instance, a Spatial Dataset (or an aggregation of them -according to the granularity level that DLESE prefers ) may be seen according to 2 different points of view: 1) as a digital library resource: at a very high level of abstraction and with no many detail on its content (i.e. high level description and useful keywords); in this context the dataset is a "digital document" (with certain qualifications). 2) as a piece of geo-information: a complex and structured piece of information in a N-dimension reference system. From my point of view, a metadata standard like Dublin Core can be used for describing the first Spatial Dataset facet, while a specific Geo-information metadata standard (i.e. ISO 19915, GDC CSDGM profiles, etc.) should be used for describing the other facet. I don't know how much such solution could be fruitful, but it is an example of an approach for "sharing" information-constucts among the two different Communities. Regards, Stefano Nativi