I’ve never used it either, though I have used <data> quite a bit.
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On Sep 1, 2020, at 5:02 PM, ekimber@... wrote:
I have never used data-about, even when I thought it would be a useful thing to do.
Basically, the authoring overhead required to make the authoring of data-about practical coupled with the need to implement whatever data-about processing you might need means that the implementation cost almost (or always) outweighs any potential value from a metadata representation standpoint.
In addition, because the TC has expanded the places where <data> is allowed, it's largely removed the need to be able to point at something within a topic or map in order to impose metadata on to it (the intended purpose of data-about).
I can imagine some use case where you might want to use DITA to impose metadata onto non-DITA objects but doing so with DITA and data-about would be so one-off and outside the mainstream of any existing metadata infrastructure that I can't see it ever being done. And even without data-about you can get the same effect with topicrefs that contain the metadata they want to impose (which is basically what subject scheme does).
I think data-about falls into the category of DITA features that were a good idea at the time or were suggested by design symmetry and completeness but where overtaken by practical realities and other technologies.
On 9/1/20, 4:24 PM, "Kristen James Eberlein" <email@example.com on behalf of kris@...> wrote:
At today's DITA Technical Committee meeting, we discussed the
possibility of removing <data-about> from DITA 2.0. The
rationale for removal is:
* The spec element-reference topic is extremely convoluted.
Neither spec editors (Robert Anderson and I) has been able to
rework it and make it comprehensible.
* There is nothing done with <data-about> that cannot be
done with <data>.
* We suspect that the element is little used -- and if used, is
So, our query to the larger DITA-using community:
* Does your implementation use the <data-about> element?
* (If the <data-about> element is used) What are the use
cases for <data-about>? Please note that these should be
actual, not theoretical.
As always, thanks for your participation in the dita-users list.
Kristen James Eberlein
Chair, OASIS DITA Technical Committee
OASIS Distinguished Contributor
Principal consultant, Eberlein Consulting LLC
+1 919 622-1501; kriseberlein (skype)