Francesconi: LEX Naming Convention Implementations

Here is a list of implementations of the LEX Naming Convention (commonly known as URN:LEX), a legal identifier standard. The list was compiled by Professor Dr. Enrico Francesconi , co-developer of the LEX Naming Convention, who kindly allowed me to re-post the list here:

As for the use of LEX naming convention, let me first point out that LEX is available as both URN and http-based (dereferenceable) identifier (see http://ift.tt/MqfDyF Attachment D).

The URN version of the LEX naming convention is mainly meant to be used at institutional level, allowing dynamic discovery services for the legal resources, so to provide reference to different copies of the same act published by different authorities (1-to-n mapping between name and resources).

The http-based version of the LEX naming convention is mainly meant to be used at data provider level to comply with Linked Data principles about dereferenceability of URI (1-to-1 mapping between name and resource).

Both solutions are based on the same LEX metadata set for legal documents identification and provides a solution for multilingual jurisdictions.

As for its use, the LEX naming convention is used by:

• Italian Senate


• Normattiva, the portal of the legislation in-force in Italy


• Italian High Court (Court of Cassation)


• Senado do Brazil


• UK National Archive within the legislation.gov.uk service (as naming convention for back office document management)


• Zotero


• A first prototype of a URN-LEX resolver for France can be found at http://ift.tt/MqfDOY


• LEX is under evaluation by the Swiss Federal Chancellery for the modernization of the Centre for Official Publications (the new service has not been released on the web yet).

Thanks to Professor Dr. Francesconi for allowing us to post this information.

Filed under: Applications, Projects, Standards, Technology developments, Technology tools Tagged: Enrico Francesconi, Legal descriptive metadata, Legal descriptive metadata standards, Legal identifier standards, Legal identifiers, Legal metadata standards, Legal URNs, Legislative identifier standards, Legislative identifiers, Legislative metadata, Legislative metadata standards, LEX identifier standard, LEX Naming Convention, LEX Naming Convention implementations, Uniform Resource Name Namespace for Sources of Law, URN:LEX, URN:LEX implementations, Where is LEX Naming Convention implemented?, Where is URN:LEX implemented?, Who has implemented LEX Naming Convention?, Who has implemented URN:LEX?



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