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XML Mapping Additions Ratio

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kohsuke
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Joined: 2003-06-09
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from http://www.oreillynet.com/xml/blog/2006/05/metrics_for_xml_projects_4_xm...
This metric asks the question “How many fields are in the intended schema that are not in the original schema?” It can be used to judge whether adopting a standard schema unchanged will have the (possibly unintended) consequence of adding extra elements or attributes to support.