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-----Original Message-----
From: Leo Kraunelis [mailto:leo.kraunelis@xml.org]
Sent: Tuesday, January 15, 2002 2:19 PM
To: XML. org Focus Group; XML. org Interest List;
xml-newsletter@lists.xml.org
Cc: newsletteradvisors@lists.xml.org
Subject: XML.org Newsletter, January 2002
XML.org Newsletter
Volume: 1 Issue: 2 , January 2002
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Sponsors by IBM, SAP, ORACLE, Software AG, Documentum, SoftQuad, Altova, GE
Global eXchange Services and IONA.
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OpEd
This article reviews OASIS's 2001 accomplishments and paints a picture of
what to expect from OASIS in the future. In the months and years ahead,
OASIS is poised to continue its emergence as the leading XML and e-business
consortium group by continuing to deliver value to the e-business
community-at-large and to its growing membership, which reads like a Who's
Who of technology and e-business vendors.
(http://www.xml.org/xml/newsletter/vol_1/issue_2/news1201_oasis.html)
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XML.org News
This month features OASIS's XML.org 2001 accomplishments and how it is
positioned to help 2002 be "The Year of XML and Interoperability." The hard
work of promoting and supporting collaboration, convergence and adoption of
e-business XML standards is starting to pay off.
(http://www.xml.org/xml/newsletter/vol_1/issue_2/oped.html)
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Persistent XML
With the recent explosion of XML technologies, there's also a corresponding
explosion of products and vendors claiming to provide solutions for XML data
management. While many of these systems are simply reworked object-oriented
systems, or "XML-enabled" versions of popular relational databases, some of
these products are new, native XML database systems.
This article surveys the basic techniques for managing XML in a database
system, provides a broad classification for these techniques and describes
some example systems.
(http://www.xml.org/xml/newsletter/vol_1/issue_2/shadmon.html)
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Native XML Databases
As the use of XML in enterprise applications increases, many IT
organizations are facing the need to store XML documents. These XML
documents could be small in size, representing credit-card transactions, or
could be several megabytes large, representing a log of all customer
interactions. The problem is that many IT organizations already committed to
relational database technology are using their existing RDBMS to store these
XML documents. This puts them on a collision path with XML itself in part,
because relational databases were never designed for dealing with extensible
data -- the "X" in XML.
A more appropriate solution is to store XML documents in a native XML
database. This article describes what native XML databases are and covers
the differences between document-centric, element-centric and
pattern-centric XML databases. In particular, I'll explain why the storage
of XML requires a new type of database, and expands on the benefits and
drawbacks of native XML databases. Finally, I'll discuss applications that
are suited to using XML databases along with an example.
(http://www.xml.org/xml/newsletter/vol_1/issue_2/rymkiewicz.html)
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Schema Designer
With many large companies building their development frameworks around the
new XML Schema standard, are DTDs a legacy format of the past? Are DTDs now
useless? This article discusses the benefits and problems associated with
each standard. Providing insight for technology developers who need to
understand which standard to use for specific development problems. Included
is an example DTD and XML Schema for comparison and innovative quotes from
some of the leading experts in XML and emerging technologies.
(http://www.xml.org/xml/newsletter/vol_1/issue_2/bingham.html)
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Converting DTD's to XML Schema
Even though XML Schema is becoming widely available, there are organizations
that are still using DTDs, and there probably always will be. While DTDs
might not offer all of the functionality of XML Schema, they do offer some
compatibility with SGML, and the fact is that for some applications they
provide enough functionality that converting from DTDs to XML Schema might
not really be necessary.
The fact is, converting DTD's to XML Schema is more than a one-off task and
will likely be taking place for some time to come. This article, excerpted
from David Gulbransen's Special Edition Using XML Schema (Que Books) shows
how and when to convert your DTD's to XML Schema.
(http://www.xml.org/xml/newsletter/vol_1/issue_2/gulbransen.html)
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From The Well
In this white paper produced by OASIS's UBL marketing sub-committee, they
envision an XML-based "plug-and-play" commerce with XML as the foundation on
which additional standards can be defined to achieve the goal of true
interoperability. They explain how the Universal Business Language (UBL)
initiative is the next step in achieving this goal and that a standard
business language must strike a difficult balance, adapting to the specific
needs of a given company while remaining general enough to let different
companies in different industries communicate with each other.
(http://www.xml.org/xml/newsletter/vol_1/issue_2/well.html)
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