Potentially invalid use of xsi:type in schema file

[SamuelJennings]

Hi all,

I've been trying to validate xml files against the latest (kernel-4.4) DataCite schema definition using a Python package called xmlschema. I had some issues validating the schema file itself (metadata.xsd) due to the use of xsi:type in some of the declared elements.

I raised an issue with xmlschema here and the conclusion was that while the issue is generally ignored by most xml validators, the use of the xsi:type attribute is reserved for xml instances and not valid within schema definition files. They have labelled the issue as a bug and will modify their code base to not raise an error but they also suggest to change xsi:type to a simple type declaration in the schema file.

I'm not so experienced in xml myself so I'm just relaying the message. Best course of action is obviously up to you :)