What is the DOI® Data Model and why is it important?
The DOI Data Model comprises an interoperable structured data dictionary: the indecs Data dictionary (iDD) 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 System Application Profiles) so that certain types of DOI names all behave predictable 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.