Re: File metadata format draft

[Miguel Garcia <[e-mail]>]

At the moment the integration with the WebDAV properties is not done. I 
believe this is a topic for discussion. I have here more questions than 
answers. For example:

Do we want to propose a single data format for describing file metadata? 
The WebDAV properties is already standardized and deployed, whereas the 
file-data-format draft is not. However, the requirements of both 
applications are not totally the same. For example, the file data format 
does not care about the creator, but needs to signal different endpoints 
(instances) that host the same file.

Or can we integrate the WebDAV properties into the file data format? 
This will effectively create a superset of the WebDAV properties, bt I 
am not sure it will have a footprint on the implementations, due to the 
advance state of deployment of WebDAV.

Or do we want to continue with two separate paths, perhaps with this 
mapping that you mentioned?

BR,

   Miguel


Cyrus Daboo wrote:
> Hi Miguel,
> 
> --On November 12, 2007 9:58:50 PM +0200 Miguel Garcia 
> <[e-mail]> wrote:
> 
>> I have submitted a draft that defines an XML schema for describing files
>> and associated metadata. I am referring to this draft:
>>
>> http://www.ietf.org/internet-drafts/draft-garcia-app-area-file-data-forma
>> t-00.txt
>>
>> The background of this draft is as follows: We first submitted a SIP
>> event package for subscribing to changes in files stored in a remote
>> endpoint. The idea is to use SIP to emulate the "shared folder"
>> functionality that is available in common instant messaging and presence
>> clients. A part of the overall function is a format for describing files
>> and associated metadata.
>>
>> At the last IETF meeting, I got a few comments indicating that the data
>> format could be reused by other protocols, namely HTTP, and thus, it
>> should be split out from the draft and discussed in the Apss area. So
>> this is what I am doing.
>>
>> So, the authors would like to get comments and questions about the
>> document.
> 
> Had a quick look. In the HTTP world, meta-data about files is already 
> covered by WebDAV properties. So the question I have is what, if any, 
> thought has been given to integration with WebDAV. e.g. a lot of 
> elements in your schema have exact equivalents in WebDAV. It might be 
> useful, at a minimum, to define a mapping between your schema and what 
> WebDAV provides.
> 

-- 
Miguel A. Garcia           tel:[phone]
Nokia Siemens Networks     Espoo, Finland