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Len, a very happy new year to you, and everyone again.
I like the way Len had put across his view points. However, I would say
that -- "Necessity is the mother of invention", and alternate schemas if
they exist, it is not because it is necessary to outdo others, rather
because they are necessary for our applications.
<warning>speaking for himself only<warning>
cheers and regards - murali.
On Thu, 3 Jan 2002, Bullard, Claude L (Len) wrote:
> Some don't want to replace DTDs. They have the tools already
> and their enterprise and partners are using them.
>
> Some don't want to rebuild working DTDs. They don't have to
> unless some get their way and rip them out of XML as a means
> to simplify their own systems at the expense of working systems.
>
> Moving from a DTD to an XML Schema isn't that hard if you have
> the background and the support of your own enterprise and its
> trading partners. If you haven't got a DTD, skip that and
> move on to an alternative. It is a tool that is past its
> prime.
>
> RELAX NG? Do you have the tools, do you need the tools,
> do you have the background and the support of your own enterprise
> and its trading partners?
>
> RELAX is marvelous. So is a DeLorian. I can't afford one
> but I'll sure pull over and let it pass. I hope not to pay
> for parts for one. RELAX NG becomes the tool of choice
> when it is the affordable tool and enough other drivers have
> them that the lines in the parking lot are sized appropriately.
> Is RELAX today's tech? See above. It is a good thing to
> know that independents are preparing tools. It will be
> better when commercial sources deliver them.
>
> Mark is saying something obvious: despite the inclination of
> the XML industry and its leaders to tweak, compete, and outdo
> each other in pursuit of elegant designs (a fun and sometimes
> noble pursuit), those who have to deliver on time and within
> budget resist that tweaking. They have to. Note today's
> USA Today in which the original 100 dot.com notables just got
> reduced to 50 (even Commerce One was removed) to reflect
> an industry in which shakeout, merger, and re-catergorization
> are the dominant processes. Note that in some cases, other
> standards efforts that depend on XML as a basis have to simply
> punt away the newer draft specs and proceed on their own because
> they cannot reliably predict when these specs will settle down
> long enough to work with them. This isn't just "non-XMLers
> who don't get it". Some are serious business interests who
> have to move at a pace matched by returns on investment. It
> is one thing to be a university funded project, an independently
> wealthy developer, or even a poor and brilliant hacker; it is
> another to work to schedule under contract with punitive provisions
> for default. Again, some of us have to bet our companies on
> reliable vendors such as Microsoft because when we carefully
> consider the alternatives, the holders of those make the bets
> too risky. Mark said "no for now". That isn't an unsensible
> thing to say. "No now and forever" would be.
>
> So we can't dismiss Mark out of hand and we can't blame Internet
> Time because the Internet is almost out of time, a condition of
> it's own making. When something is working, it may seem stodgy
> to dismiss innovation, and it is often risky, but it is as Ben
> Franklin tells us, the bird worth holding.
>
> len
>
> -----Original Message-----
> From: John Evdemon [mailto:jevdemon@vitria.com]
>
> On Thursday, January 03, 2002 12:49 PM, Mark Evans wrote:
> >
> > Now we see schemas finally making their escape. That is a
> > good thing. I dislike the idea of replacing them with
> > something else.
>
> Even if the "something else" is easier to learn and use?
> I imagine some people thought the same thing about replacing
> DTDs with XML Schema.
>
> > Because schemas have been so long coming, everyone I meet is
> > using DTDs. This kind of backwardness is caused by
> > uncertain, zig-zag standards development.
>
> Given the significant investments in DTD development, moving
> to XSD may not be a viable (or necessary) option.
>
> > I grant that RELAX NG may be better. Frankly, I've never heard of it
> > until now. I looked at the web sites. Ho hum is my impression --
> > more XML tweaking when what the world needs is a stable XML standard.
>
> I suggest you go back and re-read the RNG spec - its an amazing bit of
> work.
>
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