[Esip-discovery] FW: [spg] OGC Xlink Policy and timeline to move to XLink 1.1

Lynnes, Christopher S. (GSFC-6102) christopher.s.lynnes at nasa.gov
Thu Apr 26 14:59:56 EDT 2012

On Apr 26, 2012, at 1:55 PM, Huang, Thomas (388J) wrote:

> Hi all,
> Looking at the attributes and values for rel, type, and xlink, it is difficult to determine the href is really pointing to an OPeNDAP server.
>  Perhaps we should consider the keyword OPeNDAP be the prefix for the title attribute?  

   Actually, the xlink is meant to serve that purpose:  xlink:role="http://xml.opendap.org/dap/dap2.xsd" is meant to *unambiguously* say that the href is pointing to an OPeNDAP server. Can you elaborate on where the difficulty arises?

> Using the title value and type attribute, the user applications/services should be able to programmatically determine how to connect to the href defined by the <link/> element.  The <link/> element could be used to point to other relevant services such as FTP, SFTP, metadata conversion service, extraction/subsetting services, etc.  Should we consider standardizing some of the URL title/keywords?
> thanks,
> Thomas.
> On Apr 26, 2012, at 10:23 AM, Hua, Hook (388C) wrote:
>> FYI. Relevant for DCP-4: OPeNDAP Links in the Atom <link/> element 
>> http://wiki.esipfed.org/index.php/DCP-4

Dr. Christopher Lynnes     NASA/GSFC, Code 610.2    phone: 301-614-5185

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