Re: [Megaco] [H.248.39] Advanced SDP Wildcarding Package - Recursiveness vs multiplicity

Christian Groves <Christian.Groves@nteczone.com> Thu, 06 March 2014 12:59 UTC

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Date: Thu, 06 Mar 2014 23:59:31 +1100
From: Christian Groves <Christian.Groves@nteczone.com>
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To: "Schwarz, Albrecht (Albrecht)" <albrecht.schwarz@alcatel-lucent.com>, Tommy Young <tommy@huawei.com>
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Subject: Re: [Megaco] [H.248.39] Advanced SDP Wildcarding Package - Recursiveness vs multiplicity
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Hello Albrecht,

OK I see your point, the usage of "recursion" doesn't meet 
mathematical/logic definition. I'm OK to rename it. Maybe the "multiple 
value response" wildcard?

With regards to AVD-4504 I think i'd be happier adding "~" if we also 
tied that capability to a package.

Regards, Christian

On 6/03/2014 8:01 PM, Schwarz, Albrecht (Albrecht) wrote:
> Hello Christian, Tommy,
> thanks for the package proposal, a good solution for the related problem in our opinion.
>
> One pre-meeting comment concerning terminology, because possibly caused by us. We were also struggling (when working on AVD-4504) with the editor's note concerning "recursion", but couldn't remember a real example.
>
> If we consider a single SDP line, then recursion would be a structure like "X = Y ... X ...", right?
> However, such SDP line grammar is not possible.
>
> If we consider line interlinkage, then a circular definition could be e.g.
> X = Y ...
> Y = X ...
> But again, such SDP line grammars are not possible.
>
> Thus, perhaps we should term the "$R" wildcard as "multiplicity wildcard" or sth similar, but not "recursive wildcard".
> Or "cardinality wildcard" ... hm?
>
> What do you think?
> Albrecht
>
>
> Ref.:
> AVD-4538 H.248.39 Updates: Additional wildcarding
> AVD-4504 H.248.39 (Rev.): Wildcard "~" -  Continuation of discussion
>
>