Action PID Generator

Assigned
EK: ? ABR: 4 PKO: 3-5

Prev assigned

Tasks adressed
["Tasks/8/2"]

Time estimated
?+7-9md

Time used

Priority
1

Status
Not described

Iteration
24

Notes

Discuss the paper: IT- og Telestyrelsen (2006): Unikke identifikatorer til digitale objekter. Standard. Compiled by a working group and appoved at a meeting in 2006 of Datastandardiseringskomitéen.

The paper recommend to use Uniform Resource Name (URN), but would have recommended eXtensible Resource Identifier (XRI) as a more up-to-date and more elaborated method; but since XRI - contrary to expectation - was not accepted as standard under OASIS the working group could not recommend XRI for the time being

URN consist of 3 parts: 1) "urn" 2) Namespace identifier (NID) 3) Namespace specific String (NSS). NID is assigned by Internet Assigned Numbers Authority (IANA) and NSS is managed by the NID namespace responsible.

As NID you can use ISBN, ISSN, UUID or other number systems. Also there exist a national namespace, NZL (New Zeeland) as a NID. If an organisation wants its own NID, you have to apply for it at the Internet Engineering Task Force. The application shall also describe a possible structure for NSS and it is an obligation that the resources are available via Internet.

An alternative mentioned in the paper is Universal Unique Identifier (UUID). There are more versions of UUID and the standard is described in attachment 2 to the above mentioned paper.

The characteristics of UUID are

A time based UUID can be generated locally on a computer and will be universally unique because of the combination of

On the internett there are free available UUID generators, e.g. here: www.int/itut/asn1/uuid.html

Checklist For Working On An Action

The Life Cycle of an Action:

Please make sure that you address the below issues, when working on an action: