Re: [foxboro] client server

Alex,
        That was brief enough to make me ask questions :<)

Is the IEE data stored in an SQL database?

Is XML being used to retrieve data from the SQL database and then
recreate XML data fields for an HMI display that can be browser based?

 I have to admit that my understanding of XML is weak and caused me to
google it to try and clear up my lack of experience with it.  It sounds
like its strength is not as a data storage repository for all the data
but more as a user interface tool that incorporates data in a database
and replicates it as data that it can define and export to other web
based applications.  Somebody knowledgeable jump in here and help me.
I'm drowning.

Tom VandeWater

The XML definition I found on answers.com follows.

(EXtensible Markup Language) An open standard for describing data from
the W3C. It is used for defining data elements on a Web page and
business-to-business documents. XML uses a similar tag structure as
HTML; however, whereas HTML defines how elements are displayed, XML
defines what those elements contain. While HTML uses predefined tags,
XML allows tags to be defined by the developer of the page. Thus,
virtually any data items, such as "product," "sales rep" and "amount
due," can be identified, allowing Web pages to function like database
records. By providing a common method for identifying data, XML supports
business-to-business transactions and has become "the" format for
electronic data interchange and Web services.

-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of Johnson, Alex P (IPS)
Sent: Monday, March 26, 2007 3:44 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] client server

Re: ArchestrA (R) was handling everything in XML.  =3D


It doesn't handle everything in XML.


Regards,
 =3D

Alex Johnson
Invensys Systems, Inc.
10900 Equity Drive
Houston, TX 77041
713.329.8472 (voice)
713.329.1700 (fax)
713.329.1600 (switchboard)
alex.johnson@xxxxxxxxxxxxxxxx

-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]
On Behalf Of David Johnson
Sent: Monday, March 26, 2007 1:23 PM
To: foxboro@xxxxxxxxxxxxx
Subject: Re: [foxboro] client server

Jeremy, if you and Tom weren't usually so right I wouldn't bother =3D

with this, but....

I though Archestra (R) was handling everything in XML.  Why not use =3D

that with a published I/A schema, then we could roll our own =3D

Archestra tools to take advantage of all of that stuff.  I can see a =3D

lot benefit with XML.


Regards,
David


 =3D

 =3D

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