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A DOI name shall not be used as a replacement for other identifier schemes such as ISAN, ISBN, ISRC, ISSN, ISTC, ISNI and other commonly recognized identifiers, but when used with them it can enhance the identification functionality provided by those systems with additional DOI System functionality, and thus, provide interoperability with existing identifier schemes.

This section explains the different ways other identifier schemes can be integrated. For more considerations about identifier interoperability, see Identifier Interoperability factsheet on the DOI web site.