That's not a justification of the change; it's an assurance that existing implementations that do not wish to change can remain conformant to the standard.
Peter
> -----Original Message-----
> From: ISO 639 Joint Advisory Committee [mailto:[log in to unmask]] On
> Behalf Of Milicent K Wewerka
> Sent: Friday, May 30, 2008 4:19 AM
> To: [log in to unmask]
> Subject: Re: Request from Serbia to change bibliographic language codes
> in ISO 639-2
>
> Regarding HÃ¥vard's statement:
>
> "The identifiers "scr" and "scc" will not be deleted or
> "invalididated". Indeed, if a system properly implements ISO 639 it
> should already allow "scr"/"hrv"/"hr" and "scc"/"srp"/"sr" as synonyms
> for retreival purposes. Whether a data owner wants to change old data
> or
> not, should be little more than a "cosmetic" issue."
>
> This argument could be used in favor of the elimination of any of the
> bibliographic identifiers where they differ from the terminological
> identifiers. If we want to be careful in justifying a change only for
> Serbian and Croatian, this would not be a good justification.
>
> Milicent Wewerka
> Library of Congress
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