Schema for information about metadata records as exposed by the NSDL OAI repository. For more information, see http://repository.comm.nsdlib.org/cgi-bin/wiki.pl?NSDL_Elements Updated 2007-04-13 TC version 1.00.003 added optional resource with handle attribute updated 2003-11-10 ND version 1.00.002 primaryIdentifier optional updated 2003-05-20 Naomi Dushay: version 1.00.001; add strict check on schemaVersion updated - 2002/09/30 version 1.00.000 created - 2002/06/10 12:09:00 Naomi Dushay information to display the brand icon of the primary collection of this metadata record category of this metadata record, via controlled vocabulary. (e.g. 'collection' 'item' 'annotation') the time when the metadata record was first placed in the NSDL Metadata Repository. Granularity of seconds expected. the primary identifier of the resource. must be a URL. secondary ID of this metadata (e.g. an aggregators assigned secondary ID, or the Site for Science ID) An identifier for a resource. Can be any value, needs handle attribute For exact matches of the first two parts of the schemaVersion with THIS schema's version. URL of the icon image. a title for the icon that may be used in an HTML ALT tag or as a text alternative to the icon the width in pixels of the icon at iconURL the height in pixels of the icon at iconURL NOTE: this is like a linkElementType from nsdl_types, but without datestamp or linkSource attributes. I couldn't find a way to derive this properly from a common base type used by this and linkElementType so that XSV, Xerces and topologi wouldn't complain.