RE: [xri-editors] Proposals for XRI Descriptor priority attribute

["Lindelsee, Mike " <mlindels@visa.com>]

Falling back on XML document order as a default seems sort of odd to me
as the proposal is to use the priority attribute instead of XML document
order.  If we could use it as the default ordering, do we need the
additional attribute?

Mike

>-----Original Message-----
>From: Drummond Reed [mailto:drummond.reed@cordance.net] 
>Sent: Sunday, June 19, 2005 7:16 PM
>To: 'Peter Davis'; Lindelsee, Mike ; 'Wodjenski, Sharon'; 
>Wachob, Gabe; xri-editors@lists.oasis-open.org
>Cc: 'Chasen, Les'; 'Zhang, Ning'; 'Tran, Trung'
>Subject: RE: [xri-editors] Proposals for XRI Descriptor 
>priority attribute
>
>I believe the modal use case is pretty simple and directly 
>parallels that of
>MX records in DNS, i.e., a client application receives back an 
>XRID with
>more than one [Authority/Service/Internal Synonym/External 
>Synonym] element
>and/or an Authority or Service element with more than one URI 
>element. How
>can the publishing Authority unambiguously indicate the 
>priority in which
>the client application should consume these elements?
>
>While I agree with Peter's text below, my only question is whether XML
>document order should be the default if the priority element 
>is not present.
>In other words, should it be:
>
>    The order of processing of sibling nodes of an XRID is XML document
>    order unless the priority attribute is present, in which 
>case, resolvers
>    SHOULD process the siblings with such attributes as an ordered set
>    where lower integer values indicate high sorting weights.
>
>But I don't feel strongly about this, i.e., it could just be 
>unspecified in
>the absence of the priority attribute if that's preferred.
>
>=Drummond 
>
>-----Original Message-----
>From: Peter Davis [mailto:peter.davis@neustar.biz] 
>Sent: Thursday, June 16, 2005 10:40 PM
>To: Lindelsee, Mike; Wodjenski, Sharon; Wachob, Gabe; Drummond Reed;
>xri-editors@lists.oasis-open.org
>Cc: Chasen, Les; Zhang, Ning; Tran, Trung
>Subject: Re: [xri-editors] Proposals for XRI Descriptor 
>priority attribute
>
>Sorry, coming late to the party.  I think Mike is spot on.  We 
>definitely
>need a set of motivating use cases for this (I know some of them, but
>Sharon's got a better grasp than I now ;-)
>
>I think Gabe's recommended semantics are right.  My cast:
>
>    The order of processing of sibling nodes of an XRID is unspecified
>    unless the priority attribute is present, in which case, revolvers
>    SHOULD process the siblings with such attributes as an ordered set
>    where lower integer values indicate high sorting weights.
>
>--- peterd
>
>
>On 6/14/05 4:09 PM, "Lindelsee, Mike" <mlindels@visa.com> wrote:
>
>> Fair enough.  Even better than example XRIDs might be the 
>use cases that
>> those XRIDs are used in.  I think having proposed use cases 
>might help
>> us all come to agreement about how the priority attribute should be
>> treated.  Does anyone on the list disagree that the resolution spec
>> should have normative language regarding the semantics of 
>how a client
>> should treat priority attributes?  If not, are there any 
>proposals for
>> what those semantics should be?
>> 
>> Mike 
>> 
>>> -----Original Message-----
>>> From: Wodjenski, Sharon [mailto:sharon.wodjenski@neustar.biz]
>>> Sent: Tuesday, June 14, 2005 11:10 AM
>>> To: Lindelsee, Mike ; Wachob, Gabe; Drummond Reed;
>>> xri-editors@lists.oasis-open.org
>>> Cc: Chasen, Les; Zhang, Ning; Tran, Trung; Davis, Peter
>>> Subject: RE: [xri-editors] Proposals for XRI Descriptor
>>> priority attribute
>>> 
>>> Mike,
>>> 
>>> I'm not sure any of the documents would be helpful.  They are
>>> internal documents for the GRS design and don't cover anything
>>> from a client perspective, or address the semantics of the
>>> priority attribute.  About the best I could offer would be
>>> some example XRIDs to use for discussion.
>>> 
>>> Sharon
>>> 
>>> -----Original Message-----
>>> From: Lindelsee, Mike [mailto:mlindels@visa.com]
>>> Sent: Monday, June 13, 2005 6:19 PM
>>> To: Wodjenski, Sharon; Wachob, Gabe; Drummond Reed;
>>> xri-editors@lists.oasis-open.org
>>> Cc: Chasen, Les; Zhang, Ning; Tran, Trung; Davis, Peter
>>> Subject: RE: [xri-editors] Proposals for XRI Descriptor priority
>>> attribute
>>> 
>>> 
>>> Would any of those documents serve as a starting point for this
>>> discussion?  I tend to agree with Gabe that if we are going to
>>> specify a
>>> priority attribute, we should also specify the semantics of that
>>> attribute.  At the very least, this seems needed for 
>interoperability.
>>> 
>>> As a separate issue, if this topic is going to take some 
>discussion to
>>> work through, does the current schedule for publishing the specs and
>>> voting still make sense?
>>> 
>>> Mike 
>> 
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