----- Original Message ----- From: "Benno Blumenthal" <address@hidden> To: "John Caron" <address@hidden> Sent: Thursday, June 06, 2002 2:09 PM Subject: Re: orthogonality (was Re: New attempt) > Hi John, > > access and entry are not peer elements: access is subordinate to entry. > > > The point we wanted to make is that an entry exists whether or not it can be > accessed, and there can be a number of different accesses for an given > entry. If that number is zero, you call it a collection, if that number is > greater than zero, you call it a dataset, if you want the things that you are > talking about to be independent of protocol, you call them the same thing, in > this case entry. > > Personally, I think the case is overwhelming that collection be dropped. Makes > more sense to call what is left a dataset than an entry, but obviously it is > isomorphic to what is needed, so for a machine readable document I can hardly > complain. > > Benno I sympathize with this design, but there are a number of subtle issues that I think we need to clarify before we commit to it. Lets follow your line of thought, and modify Joe's example to use dataset where he uses entry: <catalog> <service name="X"/> <service name="Y"/> ... <dataset name="my_dataset"> <metadata name="global-metadata" url="..."/> <access name="global-X-access"/> <dataset name="monthly-data"> <metadata name="monthly-metadata" url="..."/> <access name="X-with-COARDS" serviceType="X" url="..."/> <access name="X-with-no-COARDS" serviceType="X" url="..."/> <access name="X-flattened-to-2D" serviceType="X" url="http://..."/> <access name="Y" serviceType="Y" url="..."/> .... </dataset> </dataset> What is the relationship (if any) between the peers <access name="global-X-access"/> <dataset name="monthly-data"> The same question asked in a different way: What is the meaning that <dataset name="monthly-data"> is contained in <dataset name="my_dataset">. Do we expect monthly-data to be a subset of my_dataset? Do we expect that <access name="X-with-COARDS"/> is some kind of subset of <access name="global-X-access"/>
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