Re: [Slim] Eric Rescorla's No Objection on draft-ietf-slim-negotiating-human-language-19: (with COMMENT)

Paul Kyzivat <pkyzivat@alum.mit.edu> Mon, 08 January 2018 18:36 UTC

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To: Randall Gellens <rg+ietf@randy.pensive.org>, Eric Rescorla <ekr@rtfm.com>
Cc: Bernard Aboba <bernard_aboba@hotmail.com>, "slim@ietf.org" <slim@ietf.org>, Bernard Aboba <bernard.aboba@gmail.com>
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From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Date: Mon, 8 Jan 2018 13:36:39 -0500
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Subject: Re: [Slim] Eric Rescorla's No Objection on draft-ietf-slim-negotiating-human-language-19: (with COMMENT)
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On 1/8/18 1:10 PM, Randall Gellens wrote:

>     The term "negotiation" is used here rather than "indication" because
>     human language (spoken/written/signed) can be negotiated in the same
>     manner as media (audio/text/video) and codecs.  For example, if we
>     think of a user calling an airline reservation center, the user may
>     have a set of languages he or she speaks, with perhaps preferences
>     for one or a few, while the airline reservation center will support a
>     fixed set of languages.  Negotiation should select the user's most
>     preferred language that is supported by the call center.  Both sides
>     should be aware of which language was negotiated.  This is
>     conceptually similar to the way other aspects of each media stream
>     are negotiated using SDP (e.g., media type and codecs).

Certainly it will be common for the choices are mutually exclusive. For 
instance, a caller *might* offer both French and Chinese. The callee (a 
call center) may have agents that speak each, but may well not have any 
agents that speak both.

OTOH, it is *possible* that they do have somebody who supports both. If 
so, seems like it would be good to indicate that both are supported.

	Thanks,
	Paul