h1. What is a Digital Author Identifier?

De *Digital Author Identification* (*DAI*) is een uniek landelijk nummer voor elke auteur, met een aanstelling of een andere relevante band bij een Nederlandse [universiteit|http://nl.wikipedia.org/wiki/Universiteit], [hogeschool|http://nl.wikipedia.org/wiki/Hogeschool] of [onderzoeksinstituut|http://nl.wikipedia.org/wiki/Onderzoeksinstituut]. Het gebruik van de DAI is geregistreerd bij het het [College Bescherming Persoonsgegevens|http://nl.wikipedia.org/wiki/College_Bescherming_Persoonsgegevens] (CBP) en de DAI is voorbereid op de internationale ISO standaard "ISNI" (International Standard Name Identifier).

* In English: [http://en.wikipedia.org/wiki/Digital_Author_Identification|http://en.wikipedia.org/wiki/Digital_Author_Identification]
In Dutch: [http://nl.wikipedia.org/wiki/Digital_Author_Identification|http://nl.wikipedia.org/wiki/Digital_Author_Identification]

h1. Syntax

(better explanation needed\!)

The DAI contains 9 characters. The first 8 characters are numbers. The 9th character is a control character.

{help}how is this control character calculated? Can anyone explain the algorithm used?{help}

at the moment the info namespace is used as an authority namespace.
{note}info:eu-repo/dai/nl/12345678X{note}The DAI is the number after info:eu-repo/dai/nl/ .
info:eu-repo/dai/nl/ is just an authority namespace, telling the user or machine that the number is a DAI originating from the Netherlands.
Click here to read more about [info:eu-repo/dai/nl/|standards:Namespace info-eu-repo]\\

{help}How can we fit the DAI in to the ISNI? It is said it can be done by OCLC. But how? The ISNI is a 16-digit number. Does this subset of dutch authors get a prefix? What about the last control number?{help}

h1. XML schema

(better explanation needed\!)

For the MODS metadata an extension has been made. The XML shema of the extension can be found here: [http://purl.org/REP/standards/dai-extension.xsd|http://purl.org/REP/standards/dai-extension.xsd]

For the use of this extension in MODS see: [Use of MODS|standards:Use of MODS]

h1. Identifier workflow

(better explanation needed\!)