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Subject: [OASIS Issue Tracker] Commented: (CMIS-596) CMIS-RestAtom.xsdreferences the undefined and unpublished atom.xsd

    [ http://tools.oasis-open.org/issues/browse/CMIS-596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16903#action_16903 ] 

Norrie Quinn commented on CMIS-596:

What I proposed above was basically option 4 described here:

Option 3 described in Cornelia's Blog could also be made to work with no dependency on an atom XSD.

However, the solution implemented in 1.0 draft 5 is a different one and IMO will lead to interop issues.

The spec now states:

>  The cmisra:children element that MUST be included in an atom entry:
>  <xs:element name="children" type="atom:feedType" />

There is nothing in the Atom spec that defines atom:feedType.  So although the schema import dependency has been removed, there is still an implicit reference here to a type in an Atom XML Schema (XSD).   Many implementers are not using XSD to work with Atom XML.  For example, the Alfresco and Chemistry implementations currently use Abdera extensions.

I think dictating that server implementers must specify an xsi:type reference to an unpublished XML Schema type, and requiring that consumers binding to XML Schema must name their XML type "feedType" is a fragile solution that will lead to interop issues. 

> CMIS-RestAtom.xsd references the undefined and unpublished atom.xsd
> -------------------------------------------------------------------
>                 Key: CMIS-596
>                 URL: http://tools.oasis-open.org/issues/browse/CMIS-596
>             Project: OASIS Content Management Interoperability Services (CMIS) TC
>          Issue Type: Bug
>          Components: Schema
>    Affects Versions: Committee Draft 04
>            Reporter: Norrie Quinn
>            Assignee: Al Brown
>            Priority: Minor
> <xs:import namespace="http://www.w3.org/2005/Atom"; schemaLocation="ATOM.xsd" /> 

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