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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RDDL: Should xlink:arcrole or xlink:role be the primary way todispatch o
Henry S. Thompson wrote:
> "Jonathan Borden" <jborden@m...> writes:
> >
> > I also agree with Jason's analysis. Practically since RDDL was
conceived,
> > I've been going back and forth on what should an arcrole vs. role be
w.r.t
> > RDDL. Indeed one morning while driving to work, I suddenly became
conviced
> > that we'd got it all wrong, and confused an arcrole for a role. At the
end
> > of the day I'd conviced myself that arcrole was fine and that was
that...
>
> But you go on to contradict what Jason, Tim and I are all saying! See
> below.
I would like to discuss the use of xlink:arcrole vs. xlink:role as a way
to specifify related resources in RDDL. I will discuss the relationship
between the root namespace URI and types in a separate message.
What I am saying is that I can see arguments for either using
xlink:arcrole as the primary resource specifier and xlink:role as secondary,
or the other way around, depending on how the situation is analyzed.
Note that the argument I present below is dependent on my reading of Ron
Daniel's xlink2rdf w3c note: http://www.w3.org/tr/xlink2rdf ... i've cc'd
Ron and Eve Maler, to give them the opportunity to clarify or correct my
analysis, and as I've said before, I can see both sides of the argument, so
if after the arguments are presented and discussed, the group decides one
way, I will agree.
Here is the argument for using xlink:arcrole as the 'primary' name:
I like to work out most problems involving links by drawing a graph of
circles and arrows. Think of a RDDL document as a node which contains a set
of arrows representing links to related resources. Each of these resources
has a type.
Using Ron's analysis, the arrow or arc connecting the document to its
related resources is named by the attribute xlink:arcrole. The xlink:role
defines another arrow between the related resource and its type.
To me it seems most natural to have the most important, or primary way
to name a related resource as an arc from the RDDL document to the related
resource and that the xlink:arcrole be the name of this arc.
From a software point of view, it is equally efficient either way. My
implementation works equally well if we globally substitute "role" for
"arcrole".
-Jonathan
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