Re: [TTML] named metadata item originatingSystem vs creationSystem

I intended creationSystem to correspond with creationDate, which I
interpret as the system and date that created the actual TTML document
instance, regardless of what preceded. If it is important to additionally
label the original authoring system and date, then I would prefer adding a
second set of items: {authoringDate, authoringSystem}.

On Wed, Jan 21, 2015 at 3:46 AM, Nigel Megitt <>

> As part of my review of TTML2, I've noticed that the named metadata item
> "originatingSystem" has been changed to "creationSystem".
> To me these two labels are not synonymous, without further explanation. I
> consider the originating system to be the system that created the first
> version of the document, and the creationSystem to be the system that
> created the current version of the document.
> Perhaps this could be clarified by adding a revisionSystem named metadata
> item in addition to creationSystem, and clarifying in the text for
> creationSystem that it is intended to mean the originating system.
> Other opinions on this welcome!
> Kind regards,
> Nigel

Received on Wednesday, 21 January 2015 14:33:35 UTC