Hi John-
	Could the THREDDS catalog be used, then, as a registry for an  
arbitrary service architecture (especially, REST and SOAP)?  Is it a  
product catalog only or can it be used for service discoverability?
        Thanks,
        -Rob
        
On Oct 15, 2009, at 8:44 AM, John Caron wrote:
One has to distinguish THREDDS Catalogs from the THREDDS Data Server  
(TDS) :
A THREDDS Catalog is an XML file,  which can be used by any program  
or service to describe online data resources. We enumerated some of  
the common service types in the XML schema as a semi-controlled  
vocabulary. "semi" because you can place any service type there and  
the XML will validate against the schema. The service is used to  
construct the URL for a dataset. The service type tells the consumer  
of the catalog how to process the dataset URL, eg what protocol to  
use.