The Digital Author Identifier (DAI) is a unique national number assigned to every author who has been appointed to a position at a Dutch university or research institute or has some other relevant connection with one of these organisations. The DAI brings together various different ways of writing the author's name and distinguishes between authors with the same name. Read more...

in september 2011 JISC send out a survey about Author Identifier systems. The Dutch response can be found here https://docs.google.com/document/d/1bitF0Ylh6GUEaWYGlFE8OQTgHnNhiESk-ktT_FRUWQo/edit?hl=en_US#