Implement IEC URN

[ronaldtse]

Rules

1. If any field is absent, leave empty

e.g. urn:iec:std:iec:60601-1-1:::: vs urn:iec:std:iec:60601-1-1:2005-10:tr:prv:fr

2. All URIs are extensible, to - define adjuncts (such as amendment, corrigendum or interpretation sheet). - name consolidations (such as base edition plus its amendment)The adjunct string is appended to the base URI (after || or _)

EXAMPLE: Naming an adjunct (e.g. corrigendum to an amendment):

• urn:iec:std:iec:60601-1-1:2015-10:::||amd:1:2017-01||cor:1:2018-01

EXAMPLE: Consolidation of base edition and its amendments:

• urn:iec:std:iec:60601-1-1:2015-04:csv:_amd:1:2016-07_amd:2:2017-02

3. All values in lower-case

Separation between a base document and its adjuncts

When a base edition is amended, corrected or otherwise added to, the URN is constructed using that of the base edition, to which we add information on the adjunct. Two types of reference exist: either to the adjunct itself or to the consolidation of the base edition with one or more of its adjuncts.

The base edition information is separated from the adjunct information by three fields. The middle field indicates whether the reference is to a consolidation or not. If left empty, the reference is to the adjunct itself. If it contains the word "plus", it is a consolidation.

EXAMPLE: Amendment 1:1993 to IEC 60068-2-2:1974

• urn:iec:std:iec:60068-2-2:1974: : : : :amd:1:1993

EXAMPLE: Consolidation of amendment 1:1993 with IEC 60068-2-2:1974

• urn:iec:std:iec:60068-2-2:1974: : : :plus:amd:1:1993

Note on adjuncts

In theory, there is no limit to the number of adjuncts that are possible. In practice, when there are many adjuncts, it is advisable to either make use of an undated reference to the base edition as a whole, or to deliver content by different means, such as database standards.

Separator	Rule	Example
:	Between fields in the URN	urn:iec:std:iec:60601
-	Within field	urn:iec:std:iec-iso:60601-1-1:
#	Between URI and IDs for document elements, such as clauses, figures, etc.	urn:iec:std:iec:60601-1-1:2015-10:::#fig-1

Note on IDs

The IDs content elements used in this document and its examples are those that were used in IEC's conversion process. Outside the context of conversion excercises, the use of semantic ID naming schemes is not necessarily encouraged. This URN model can be used with other IDs.

Note on languages

Languages are listed in alphabetical order, to ensure that identical values are expressed in the same way (and at the same time, to avoid complex tables of language combinations to solve the problem)

Defining table

item	description
sdo namespace	Specific to each organisation.
content type namespace	Right now limited to "std", which means standards-type documents. Could be extended to other deliverables?
date	blank, YYYY, YYYY-MM or YYYY-MM-DD
type	For IS: can be blank or use "is". Other currently existing values: ts, tr, pas, guide, is, srd, ser (for series/all parts)
deliverable	product type
language	can be blank or use ISO language codes, can be one or many
adjunct type	currently used values: amd, cor, ish…could be extended.

Examples

• Prefix = urn + sdo namespace + content type namespace
• Base document identifier: header + project number + date + type + deliverable + language
• Relation = relation
• adjunct document information: adjunct type + adjunct number + date
• component or related asset information: # or =, component id or related asset

urn	:	sdo namespace	:	content type namespace	:	header	:	project number	:	date	:	type	:	deliverable	:	language				adjunct type	:	adjunct number	:	date	# or =	component id or related asset
:	relation	:
urn	:	iec	:	std	:	iec	:	67654	:	blank	:	blank	:	prv	:	blank	:	plus	:	amd	:	1	:	2010-08	#	fig-1
urn	:		:		:	iso	:	60601-1	:	2010-03	:	ts	:	csv	:	en	:		:	amd	:	1	:	2010-12	#	sec-1
urn	:		:		:	iec-iso	:	61076-7-101	:	2010	:	tr	:	exv	:	fr	:	plus	:	cor	:	etc…	:	2010-11	#	sec-3.4
urn	:		:		:	iec-ieee	:	80004	:	2010-10-11	:	pas	:	rlv	:	ru	:	plus	:	ish	:	1	:	etc.	#	sec-4.5.6
urn	:		:		:	iec-itu	:	etc.	:		:	guide	:	cmv	:	en-fr	:	plus	:	…	:		:		#	tabl-7
urn	:		:		:	iec-astm	:		:		:	is	:		:	en-fr-ru	:	plus	:		:		:		#	anx-a
urn												ser													#	not-4.6.7-2
																									#	nte-3.2-1
																									#	etc.
																									=	software supplement
																									=	voting report
																									=	webpage
																									=	forum