08 July 2011 Exploring interoperability of Persistent Object Identifier systems

Seminar on Persistent Object Identifiers identified first steps to be taken and common interest in connecting persistent identifiers with linked data.
On 14 and 15 June 2011, more than 40 experts involved in various Persistent Object Identifier (POID) communities met for a Knowledge Exchange seminar to discuss the challenges and opportunities involved in interoperability between multiple POID-systems.
Three major systems – Handle, URN:NBN and DOI – presented their current state of affairs and examples of their systems in practice. Bringing together these different communities into one room for two days in itself was a first, and an important step in exploring interoperability – not just between systems and machines but also between people, organisations and policies. Views expressed on what is needed covered a wide spectrum. Some advocated providing more clarity about what each system does and how they compare, rather than how they differ. Others stressed awareness raising about the importance of the use of POIDs as such, since this is not as widely acknowledged as is sometimes assumed.
There was a clear interest in connecting the POID systems to the linked data standards. This led to the ‘Den Haag Manifesto’, which outlines a series of concrete actions to join the POID and Linked Open Data communities.
The seminar offered ample input for the DIGIODUNA study which is being conducted by the European Commission and should offer recommendations in this field which are relevant for scientific data infrastructures.

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