Talk:IDCODE

jens 06:15, 11 March 2013 (UTC) I don't know whether a special format is needed. Thus I used String in the draft.

I thought about the definition and it seems that was the simplest solution I could get.

raphael 00:08, 12 March 2013 (UTC): I think we should try to distinguish IDCODE from "name" and plain "identifiers." How about adapting ISO definitions? ISO 19135 ("Geographic information - Procedures for item registration") defines "identifier" as a "linguistically independent sequence of characters capable of uniquely and permanently identifying that with which it is associated". ISO 19118 ("Geographic Information - Encoding") defines "code" as a "representation of a label according to a specified scheme". We can combine the two:
Definition: A language-independent sequence of characters capable of uniquely and permanently identifying that with which it is associated, and defined according to a specified scheme.

Remarks: Needs to pinpoint a particular source of information, such as a publication or chart. The scheme may be named as part of the attribute value, and may be arbitrary, well-known, or according to some encoding system known only to the producer of the item.

Examples: "ISBN 978-3-86987-298-8" (ISBN for BSH Sailing directions volume Nr. 2001, 2012 edition, title "Ostsee-Handbuch, Östlicher Teil"); "Seekarte Nr. 62" (BSH number for the BSH paper chart covering the Kattegat).

Distinction: name

FYI Wikipedia also managed to find a lot to say about "identifier"...