[OAI-implementers] Different tagging styles in oai pmh 2.0 w/o namespaceprefix

Thomas G. Habing thabing@uiuc.edu
Thu, 15 Jan 2004 12:55:48 -0600

Hi Thomas,

 From the perspective of a namespace compliant XML parser, the prefix which 
is used is not significant; the URI to which the prefix is bound is what is 
significant.  For example:

<title xmlns="http://purl.org/dc/elements/1.1/">TEST</title>

<dc:title xmlns:dc="http://purl.org/dc/elements/1.1/">TEST</dc:title>

<dubc:title xmlns:dubc="http://purl.org/dc/elements/1.1/">TEST</dubc:title>

All of the above should be treated identically; therefore, I doubt if there 
will be any changes to the OAI spec to clarify.

I will say that I have run into practical problems when trying to ingest 
prefixed or not prefixed xml records into different database systems. 
However, I consider this to be a problem with the database, not with the XML 
records or the OAI specification.

Hope this helps,

Thomas Habing
Research Programmer, Digital Library Projects
University of Illinois at Urbana-Champaign
155 Grainger Engineering Library Information Center, MC-274
thabing@uiuc.edu, (217) 244-4425

Thomas Krämer wrote:

> Hello ,
> i just recognized, that theere is apparently no agreement about whether 
> to include the namespace prefix in the metadata or not.
> i added two records using differents tagging.
> will there be a decision on further versions of the protocol?
> regards
> thomas
> <?xml version="1.0" encoding="utf-8"?>
> <oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" 
> xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ 
> http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
> <dc:title>California letters of Lucius Fairchild</dc:title> 
> <dc:description>Lucius Fairchild (1831-1896) left Madison, Wisconsin, 
> for California in 1849 and remained in the West until 1858. On his 
> return to Wisconsin, Fairchild carved out a remarkable career as a 
> soldier-politician: serving in a Wisconsin regiment in the Civil War, 
> winning election as governor in 1866, and then representing the United 
> States abroad in a variety of diplomatic posts. California letters of 
> Lucius Fairchild (1931) records his overland journey to California, gold 
> prospecting from Calaveras County to Scott Valley, business partnership 
> with Elijah Steele in farming, mining, and butchering in Scott 
> Valley.</dc:description> <dc:type>text</dc:type> <dc:source>31-33125. 
> Selected from the collections of the Library of Congress. Not 
> determined.</dc:source> <dc:language>eng</dc:language> 
> <dc:identifier>http://www.perseus.tufts.edu/cgi-bin/ptext?doc=Perseus:text:2000.02.0004</dc:identifier> 
> </oai_dc:dc>
> <?xml version="1.0" encoding="utf-8"?>
> <oaidc:dc xmlns="http://purl.org/dc/elements/1.1/" 
> xmlns:oaidc="http://www.openarchives.org/OAI/2.0/oai_dc/"
>  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>  xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ 
> http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
> <identifier>http://infomotions.com/musings/marketing/index.shtml</identifier> 
>                  <creator>Morgan, Eric Lease</creator>  <title>Marketing 
> future libraries</title>
>                   <date>1998-11-27</date>
>                   <description>Now, more than ever, libraries are no 
> longer the center of the information universe. While us librarians never 
> truly had a monopoly on information, our 'market share', especially with 
> the advent of globally networked computers, has dwindled considerably. 
> Put another way, there are many more people and institutions providing 
> information services today than even five years ago. Consequently, it 
> behooves us to think more aggressively about marketing our information 
> and knowledge products and services if we expect to be around in the 
> future.</description> <subject>marketing</subject>  <subject>CIL 
> (Computers In Libraries)</subject>    <rights>This text is distributed 
> under the GNU Public License.</rights>  <type>text</type>  
> <format>text/html</format>  <language>en-US</language>  
> <contributor>Infomotions, Inc.</contributor>     </oaidc:dc>
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