Betty,
Thanks. And you're right on the mark for stating that it goes beyond XML.
Again, one has to very carefully architect for fault tolerance, redundancy
and account for the impact to the business if there is any one single point
of failure.
Rachel
Rachel:
I believe that you have pointed out an important issue
that isn't being addressed. When rely on someone else to provide
core business requirements externally, you put your business at
the mercy of a 3rd party. There are literally thousands of things
that can go wrong. If you are working in a time-critical mode
you have to have a contingency plan.
As a business I would always maintain DTD's and Schemas
internally, if at all possible. Sometimes it isn't possible because
of the working environment. However, when that fails you need a
roll-over plan. Even when the networks are working well, the
DTD's or schemas can get replaced without your knowledge and cause
production to stop because the information being validated is no
longer valid according to the DTD that it is pointing to. You are
relying on the other party to maintain integrity.
Unfortunately, this problem is more than XML. It involves
the entire distributed network environment.
Betty
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
Betty Harvey | Phone: 410-787-9200 FAX: 9830
Electronic Commerce Connection, Inc. |
[EMAIL PROTECTED] | Washington,DC SGML/XML Users Grp
URL: http://www.eccnet.com | http://www.eccnet.com/xmlug/
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\\/\/
On Fri, 27 Apr 2001, Rachel Foerster wrote:
> I'm cross-posting this message since I think it highlights one of the
> gottcha's that could/will pop up to bite companies when they rely on
> external schemas for XML document validation. It obviously emphasizes the
> need for one to thoroughly architect for redundancy and backup.
>
> Rachel
>
> -----Original Message-----
> From: Matt Sergeant [mailto:[EMAIL PROTECTED]]
> Sent: Friday, April 27, 2001 12:37 PM
> To: Dave Winer
> Cc: XML-Dev (E-mail); [EMAIL PROTECTED];
> [EMAIL PROTECTED]
> Subject: Re: Netscape and RSS
>
>
> On Fri, 27 Apr 2001, Dave Winer wrote:
>
> > Good morning sports fans!
> >
> > Worthy of note -- RSS, the embattled spec of the XML world, has suffered
> yet another blow..
> >
> > Yesterday everything RSS-related disappeared from Netscape.Com.
Apparently
> they did a total redesign of the server, and lost the spec, the DTD, all
the
> channels and CGIs, even the directory entries on DMOZ are broken this
> morning.
> >
> > It's been an interesting scramble to put it back together. Some RSS
> developers are completely broken because their parsers depend on the DTD.
We
> learned the importance, this morning, of having a good second source for
> these things.
> >
> > We found the DTD [1], and luckily we did our own RSS 0.91 spec [2] last
> summer, allowing IETF-style excerpting and replication.
> >
> > Whew!
>
> Well not quite "Whew" yet. It still needs all feeds to update themselves
> to point to the new DTD. But thanks for staying on top of the problem.
>
> Matt. (who lost almost 2 whole days work trying to track this down, and is
> thinking of sending the bill to Netscape).
>
>
> ------------------------------------------------------------------
> The xml-dev list is sponsored by XML.org, an initiative of OASIS
> <http://www.oasis-open.org>
>
> The list archives are at http://lists.xml.org/archives/xml-dev/
>
> To unsubscribe from this elist send a message with the single word
> "unsubscribe" in the body to: [EMAIL PROTECTED]
>
>
>
> ------ XML/edi Group Discussion List ------
> Homepage = http://www.XMLedi-Group.org
>
> Unsubscribe = send email to: [EMAIL PROTECTED]
> Leave the subject and body of the message blank
>
> Questions/requests: [EMAIL PROTECTED]
>
> To receive only one message per day (digest format)
> send the following message to [EMAIL PROTECTED],
> (leave the subject line blank)
>
> digest xmledi-group your-email-address
>
> To join the XML/edi Group complete the form located at:
> http://www.xmledi-group.org/xmledigroup/mail1.htm
>
>
--
------ XML/edi Group Discussion List ------
Homepage = http://www.XMLedi-Group.org
Unsubscribe = send email to: [EMAIL PROTECTED]
Leave the subject and body of the message blank
Questions/requests: [EMAIL PROTECTED]
To receive only one message per day (digest format)
send the following message to [EMAIL PROTECTED],
(leave the subject line blank)
digest xmledi-group your-email-address
To join the XML/edi Group complete the form located at:
http://www.xmledi-group.org/xmledigroup/mail1.htm
