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The DOI System stresses interoperability, resolution and metadata — how do they relate to each other?

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The DOI System uses an interoperable structured data dictionary: the indecs Data dictionary (iDD). The DOI Data Model embraces both this data dictionary and a framework for applying it. The data dictionary component is designed to ensure maximum interoperability with existing metadata element sets; the framework allows the terms to be grouped in meaningful ways (DOI Application Profiles) so that certain types of DOI names all behave predictably in an application through association with specified Services. This provides a means of integrating the features of Handle resolution with a structured data approach. DOI names need not make use of this data model, but it is envisaged that many will: any DOI name intended to allow interoperability (i.e. which has the possibility of use in services outside of the direct control of the issuing Registration Agency) is subject to DOI System Metadata policy, which is based on the registration of terms in the iDD.

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