Re: [VCARDDAV] Questions, Concerns, and Errata concerning vcardrev-13

Simon Perreault <> Thu, 04 November 2010 15:51 UTC

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From: Simon Perreault <>
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Subject: Re: [VCARDDAV] Questions, Concerns, and Errata concerning vcardrev-13
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On 2010-10-12 02:42, Rohit Khare wrote:
> * 6.2.10 is absence supposed to be inferred as 0 or 9? Because let me
> tell you, the politically freighted “not known” is not at all the same
> as “not included”. Properties ought to have default values, and the
> debate this one would provoke is worth watching.

No. Absence means neither 0 nor 9. Absence means absence of data.

0 means "I'm telling you I don't know." If the vCard is about myself,
that could be interesting. If the vCard is about someone else, I want to
indicate that I don't know the sex of the person, maybe as a reminder to
myself that I should find out.

9 means "I'm telling you it's not applicable." A use case I have in mind
is for a KIND:thing vCard.

Absence means "I'm not telling you anything." I could have neglected to
enter the sex. Or maybe I want to hide something. In any case, all
values (0,1,2,9) could be possible. You just have no data.

This all seems very obvious to me. If the text needs to be fixed, please
propose explicit text to be changed.

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