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Subject: RE: [discovery] Re: Metadata Discovery Coordination Group, an Introduction

Title: Re: Metadata Discovery Coordination Group, an Introduction

Thanks Eran. That answers my question, and I agree that having a forum for a public dialog among all the groups is a great step forward.




From: metadata-discovery@googlegroups.com [mailto:metadata-discovery@googlegroups.com] On Behalf Of Eran Hammer-Lahav
Sent: Friday, November 21, 2008 4:19 PM
To: xrds-simple@googlegroups.com; OASIS XRI TC
Cc: metadata-discovery@googlegroups.com
Subject: [discovery] Re: Metadata Discovery Coordination Group, an Introduction


I envision closing (archiving) the XRDS-Simple list in the near future. I think XRDS-Simple work will mostly migrate to the XRI-TC list (which is something currently being worked on for non-members). The new list will be more general and deal less with the document format/schema and more with how to retrieve it for a given resource URI.

The main problem with keeping the XRDS-Simple list active is (lack of) IPR policy. That list has mostly served as a way for me to gather feedback for my drafts. Now that I am moving my work to the OASIS XRI TC, there will be a different channel for providing feedback specific to XRD (and it will no longer be just ‘my work’).

The new list is a coordination list where I do not expect new technology to be developer, but more the posting of proposals published elsewhere (OASIS, IETF, W3C, OpenID Foundation, etc.) and a more general feedback forum focused on how the proposal addresses the various use cases rather then directly suggesting technical changes.

In other words, I’m trying to get everyone to the table so we can start a *public* dialog and decide how to best work together.


On 11/21/08 4:04 PM, "Drummond Reed" <drummond.reed@cordance.net> wrote:


I completely agree that a uniform, web-wide solution for metadata discovery
can have tremendous benefits for many different technologies. Our experience
at the OASIS XRI TC has been that there are already uses of the XRDS and XRD
discovery formats that we never anticipated, and I think we still have only
touched the tip of the iceburg.

Thanks for establishing the metadata-discovery list as a neutral open forum
where participants in all the metadata discovery efforts can carry on

One question: do you intend for this to replace the current XRDS-simple
Google Group (http://groups.google.com/group/xrds-simple), i.e., will it go
away once interested participants have migrated here?


> -----Original Message-----
> From: Eran Hammer-Lahav [mailto:eran@hueniverse.com]
> Sent: Friday, November 21, 2008 3:14 PM
> To: oauth@googlegroups.com; xrds-simple@googlegroups.com; OASIS XRI TC
> Cc: metadata-discovery@googlegroups.com
> Subject: [xri] Metadata Discovery Coordination Group, an Introduction
> Discussions about URI metadata discovery have been going on in many places
> for the past couple of years. This has been reaching its boiling point
> with
> the recent discussions between the W3C TAG, XRI TC, POWDER WG, the OpenID
> /
> Yadis, OAuth, Portable Contacts, XRDS-Simple, and OpenSocial communities,
> and various IETF I-Ds published on related topics.
> Web Discovery is likely to consist of two parts, the *retrieval* and
> *format* of a metadata document linked to a resource identified by a URI.
> There are multiple proposals for the metadata document format, with XRDS
> and
> POWDER as two notable examples. Discussions regarding metadata format
> should
> and will remain where they are currently being held.
> However, there is great recognizable value in a single (simple) mechanism
> for *retrieval* of metadata for resources identified with a URI. From the
> most basic use case of identifying which API is supported by a given
> endpoint, to a more complex trusted identity resolution, the requirements
> seems to be significantly overlapping.
> For many of these communities, time is running out and most are getting
> ready to put the final touches and ship specifications that already have
> running code. We have a rare (but narrow) opportunity to quickly go
> through
> the current proposals and at least set the tone for current and future
> discovery solutions.
> I am not ignoring the political complications of trying to reach consensus
> among so many entities and communities but I truly believe from the many
> hours of conversations I had the past 2 months that we are mostly all on
> the
> same page. All I think we now need is a room, and hence this new list:
> metadata-discovery@googlegroups.com.
> This is not a working group, nor does this group have any deliverables or
> will produce specifications. It is designed as a coordination venue for
> the
> various efforts going on to discuss their proposals and progress. It is
> also
> for soliciting feedback and confirming assumptions about discovery
> proposals.
> Given the complexities behind IPR policies and the significant
> differences,
> this list does not have an IPR policy. This means that discussions held
> here
> are not covered, and if produce anything other than normative references
> to
> existing standards (which is clearly the intention), will need to be
> resolved if adopted elsewhere.
> Web discovery has been my top priority for the past year and I am excited
> to
> finally reach the point where a critical mass is formed to finally address
> it. Please join the discussion at
> http://groups.google.com/group/metadata-discovery.
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