<< Click to Display Table of Contents >> Navigation:  Designing and Developing a DOI Application > Defining an Identifier Scheme > Integrating Another Identifier Scheme

Where syntax rules permit the incorporation of an existing identifier from another scheme as part of the DOI name, such rules shall not form part of ISO 26324. In such cases, attention is drawn to the following points.

•The same referent shall be denoted by both the DOI name and the included identifier string, to the degree that is necessary to distinguish it as a separate entity within each identifier scheme.

•Within the DOI System itself, the DOI name is an opaque string. No definitive information relating to the other identifier scheme should be inferred from the specific character string used for a DOI name, and the DOI name is not guaranteed to be usable in any non-DOI applications designed for the other identifier scheme.

•Specific syntax rules for the incorporation of an existing identifier from another scheme shall be maintained by the ISO 26324 Registration Authority.