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Subject: Re: [dita] Nested Sections
Paul Prescod wrote: > If topic-based authoring means anythng then it means that you don't > arbitrarily shred everything with a title into a topic. Topics are > things that have meaning ON THEIR OWN. A section that is inherently > embedded in its context should not become a topic to fulfill an > arbitrary requirement of a framework. I think this is the crux of the discussion: some things *must* be topics and some things *must not* be topics--that is the distinction between topic and section. In particular, if the information is titled but cannot stand alone then it *cannot be* a topic and therefore must be a section. If it can stand alone and it is a candidate for re-use (in the sense that it is not explicit disallowed as a re-use target) then it must be a topic. Whether or not a section has sub-hierarchies is irrelevant: either it stands alone if it doesn't. Just having sub-hierarchy doesn't affect its standaloneness. Therefore I submit that, from the standpoint of topic-based writing it doesn't matter whether sections nest or not, the problem is the same: is what I'm writing obligated to be or not be a topic? This is the fundamental challenge of topic-oriented writing. It is also the case that allowing nested sections allows abuse by authors, but that cannot be our concern: we are not responsible for enforcing authoring policy, only for enabling satisfaction of requirements. If nested section is a loaded gun then we have an obligation to provide gun safety training but we can't simply outlaw guns because some people might shoot themselves. That is, given that we understand the distinction between topics and not-topics and the implications of making that distinction correctly we have an obligation to educate the community on how to make that distinction clearly. I have heard from others, who shall be nameless, that they have abused other elements specifically in order to get the effect of nested sections. This is additional strong evidence that there is a legitimate and compelling requirement for such a structure. It's also important to keep in mind that the very beauty of DITA is that specializers can impose any constraints they want (consistent with the base content models), so if people want a world where nested sections are not allowed they can easily build that world. Cheers, E.
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