In computing,info is aUniform Resource Identifier (URI) scheme which enables identifiers from public namespaces to be represented as URIs, when they would otherwise have no canonical URL form, such asLibrary of Congress identifiers,Handle System handles, andDigital object identifiers.
The specification for the info scheme is provided by the Informational RFC 4452.[1]
The following is an example of an info URI:
info:ddc/22/eng//004.678
In this example, "ddc" designates theDewey Decimal Classification namespace and "22/eng//004.678" is the identifier within that namespace.
Between 2003 and 2010, info namespaces were registered by theOnline Computer Library Center (OCLC) Office of Research on behalf of theNational Information Standards Organization (NISO), an American library standards body. About 30 namespaces were registered.[2]
In 2010, the registry was closed, in view of the increasing importance of theW3CLinked Data paradigm, and adopters of the info scheme were advised to migrate resource identity requirements towards "mainstream Web practices."[3]