Hi, Eric:
The constraints feature (approved for DITA 1.2) provides a separation of concerns for extension and authoring in document design:
http://www.oasis-open.org/apps/org/workgroup/dita/download.php/25090/IssueConstraints12008.html
Does this mechanism meet the requirements for the two tiers that you are envisaging?
Hoping that's interesting?
Erik Hennum
<> wrote on 02/12/2008 05:53:17 PM:
> What I would like the committee to consider is:
>
> - Keeping the base topic and standard specializations loose enough to
> fit a variety of actual legacy data and internal standards, while still
> enforcing the basics of DITA
>
> - Developing tighter "best practices" specializations of these that can
> serve as a role model for good markup, and that might also be used for
> new content vs. legacy content
>
> What I think we DON'T want to do is to make the base spec so tight that
> it makes adopting DITA a matter of having to rewrite all your content
> immediately, or of being forced to accept a particular idea of "best
> practices" writing that may not match your own.
>
> This "two-tier" approach could potentially give us the best of BOTH
> worlds.
