• To: Yves Langisch <lists@l...>
• Subject: Re: Semantic equivalence of xml documents
• From: James Fuller <jim.fuller@r...>
• Date: Mon, 26 Sep 2005 12:07:46 +0200
• Cc: xml-dev@l...
• In-reply-to: <1127724593.6925.184.camel@k...>
• Organization: Webcomposite
• References: <1127724593.6925.184.camel@k...>
• Reply-to: jim.fuller@r...
• User-agent: Mozilla Thunderbird 1.0.6 (Macintosh/20050716)

Yves Langisch wrote:

>Hi
>
>We have defined a pretty large xml schema document. Based on this
>schema, our customers build instance documents. What we would like to do
>now is to compare two of them at a time to their semantic equality. Is
>there any tool which can handle such requirements? As the input it
>should take the schema docs and two instance documents. The only url I
>found to this topic is
>http://www-128.ibm.com/developerworks/library/x-diff/index.html . What
>we also tried is XmlUnit but our documents seem to be too complex/nested
>for the tool.
>  
>

creating diffs and measuring similarity in xml is all possible using a
suite of Perl packages (String::Compare) ….though how to measure
structural similarities between XML files….there is a bit of research
but very little code on the ground for this....

I have had good results with ssddiff...

http://ssddiff.alioth.debian.org/

there is quite a bit of useful links off this .

hth Jim Fuller

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