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Re: Normalizing XML [was: XML information modeling best practi

• To: "W. Hugh Chatfield I.S.P." <hchatfield@u...>
• Subject: Re: Normalizing XML [was: XML information modeling best practices]
• From: Ronald Bourret <rpbourret@r...>
• Date: Wed, 01 May 2002 15:48:07 -0700
• Cc: johns@s..., xml-dev@l...
• References: <MABBLFFBAGDONBKFHNFLMEHMCKAA.hchatfield@u...>

"W. Hugh Chatfield I.S.P." wrote:
> XML documents seem to me to be "transactions" which can be posted to a
> "database".  The transaction can get burst and filed as resusable
> information parts with configuration mgmt and version control(document
> management) - or update a portion of the database (e.g. order entry or
> banking) and these are all valid operations (create, update, delete). The
> design of the database and the design of the transactions are as you say
> related - but not the same.
> 
> I have always tended to view an XML document as a transaction.

This is the messaging view of XML documents. It is probably true when
the XML document is created from an XML-enabled database.

However, the flexibility of XML means that it is not always true. XML
documents used to store semi-structured data correspond more closely
related to rows in a table and the design of the documents corresponds
exactly to the design of the database. In this case, you could view the
XML document as a transaction, but could also view it simply as the data
and inserting it into a database as the transaction.

There are also XML documents that don't fit the transaction view at all:
XSLT documents, XML-RPC documents, etc.

-- Ron

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    • From: "W. Hugh Chatfield I.S.P." <hchatfield@u...>

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