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• Currently the API for external identifiers does not inform an IdentifierProvider about updated metadata. Should the DOIIdentifierProvider API be extended to take care for metadata API or does another mechanism already exists in DSpace?
• The IdentifierProvider API allows most of the methods to throw an IdentifierException. But in our first test it seems that a thrown IdentifierException won't be caught. If the API of the DOI registration agency is down or produces errors, it is impossible to publish any Items in DSpace.

All these an other topics could be discussed in jira:

Thanks

I want to thank Mark H. Wood who made the first steps for a DOIIdentifier. His code helped me to understand how DSpace handles metadata and what should be done to support DOIs within DSpace. He started to implement a DOIIdentifierProvider using EZID and also wrote a test class for it. I took the liberty to use some of his code.

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