Chris,
> On Feb 9, 2024, at 6:34 PM, Rizzo, Christopher via ipp <ipp at pwg.org> wrote:
>> If a vendor defined attribute ‘smiNNN-<attr-name>’ refers to a collection, should all member attributes of that collection also include the ‘smiNNN-‘ prefix?
No, just the top-level attribute needs the prefix.
Similarly, if you add a vendor member attribute to a standard collection, just that member attribute needs the prefix, e.g., "smiNNN-media-flavor" for a "media-col" extension.
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Michael Sweet