John, Some nice new features in this spec, especially in the services area. A couple of observations based on our use. (1) There is still not a "swath" dataType - as opposed to "grid" or "image". Maybe we're the only ones using swath so its not a community issue, but thought I would mention it. (2) Obviously we are always looking at ways to facilitate the use of ESML definitions. I looked through the spec trying to figure out where it might fit best. I guess one place might be as a serviceType for the service element if there could then be an associated URL for the description file. Another thought was in the metadata element, or maybe a combination of the two - in other words a serviceType of ESML which could then trigger an application to look at an associated metadata element for the necessary links. It might be appropriate as a type in dataFormat where there is a list of known formats and the use of ESML there could essentially make that list extensible to less known formats that could be defined by an ESML description. Those are suggestions, but I'm sure you guys can better see where it would fit best based on your conceptual view of the catalog if there is any interest. thanks, Ken Keiser -------------------------------------------------------------------- Information Technology and Systems Center University of Alabama in Huntsville Technology Hall Huntsville, AL 35899 Email: address@hidden Web: http://www.itsc.uah.edu/ Phone: 256-824-6825 Fax: 256-824-5149 -----Original Message----- From: John Caron [mailto:address@hidden Sent: Wednesday, March 31, 2004 12:25 PM To: address@hidden; address@hidden Cc: address@hidden; address@hidden; Don Murray; Jeff McWhirter Subject: Proposed new specification for THREDDSS Catalogs A proposed new version of the THREDDS Dataset Inventory Catalog is ready for your comments. Please send them to address@hidden, or to me. The new spec was created in collaboration with NCAR's Community Data Portal group. It adds new types of information for "enhanced catalogs" to facilitate interaction with search services and digital libraries. Annotated specification is at: http://www.unidata.ucar.edu/projects/THREDDS/techNew/catalog/InvCatalogSpec.html Tutorial (not complete) is at: http://www.unidata.ucar.edu/projects/THREDDS/techNew/catalog/Primer.html The new spec is based on XML Schema. The schema is at http://www.unidata.ucar.edu/schemas/thredds/InvCatalog.1.0.xsd Changes from version 0.6: http://www.unidata.ucar.edu/projects/THREDDS/techNew/catalog/Changes1.0.txt Thanks for any comments on this spec.
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