Re: [apps-discuss] Fwd: New Version Notification for draft-shelby-exi-registration-01.txt

[Carsten Bormann <[e-mail]>]

On Apr 11, 2012, at 10:59, Carine Bournez wrote:

> Rephrasing: the EXI 1.0 spec has a mechanism to tell the other end that
> schema-informed mode is in use, and the EXI 1.0 spec says that the 
> application level has to take care of defining the form of schemaID.

Let me try to translate this into language pertaining to the discussion at hand:

EXI can be used as a content-coding for XML documents in "Built-In" mode.
This would be the usage for the "Content-Encoding: EXI" that has been registered.

EXI requires out of band information to use the "Schema-Informed" mode.
In the Internet, This would normally be provided in an Internet media-type definition.
The media-type definition may also want to constrain the allowable values for the numerous options EXI provides, allowing for constrained implementations of EXI.

No existing application/foo+xml media type provides the latter kind of information.
With Content-Encoding: EXI, they are therefore limited to "Built-In" mode.
Any application that needs a tailored, schema-informed version of EXI should therefore register one or more application/foo+exi media types.

The next thing we should do is write down a template for all the information that needs to be nailed down in an application/foo+exi media type registration.

Grüße, Carsten