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This document describes the processes whereby entries may be added to, changed, or removed from the XBRL International Units Registry. The Units Registry is an online listing of units that have been identified as potentially having wide utility. The Registry contains structured information about their purpose, usage and any intended impact on XBRL instance validation.
This document is based on the processes laid down in [DTR PROCESS].
1.1 Relationship to other work
1.4 Document conventions
1.4.1 Typographic conventions
188.8.131.52 Definition notation
184.108.40.206 Footnote notation
220.127.116.11 Element and attribute notation
1.4.2 Formatting conventions
2 Update Process
2.1 Steps to achieve Acknowledged status
2.2 Steps to achieve RECOMMENDATION status
2.3 Withdrawing a Unit Identifier
2.4 Rescinding a RECOMMENDED Unit Identifier
abstract element, bind, concept, concrete element, context, Discoverable Taxonomy Set (DTS), duplicate items, duplicate tuples, element, entity, equal, essence concept, fact, instance, item, least common ancestor, linkbase, period, taxonomy, tuple, unit, taxonomy schema, child, parent, sibling, grandparent, uncle, ancestor, XBRL instance, c-equal, p-equal, s-equal, u-equal, v-equal, x-equal, minimally conforming XBRL processor, fully conforming XBRL processor and any other terms not specifically defined elsewhere in this document but which are used and defined in the XBRL 2.1 specification.
XBRL provides a small set of standard units that may appear as QNames in the measure element of an XBRL instance document. These include "shares", "pure" and currencies as specified in the [XBRL 2.1] XBRL RECOMMENDATION. As XBRL applications have emerged, unit declarations have appeared in XBRL instance documents having multiple names for equivalent meanings, and identical names having different meanings. The goal of the XBRL Units Registry UTR is to be a public, online data set that documents these units and their usage. Additions and other changes to the UTR, like other XBRL International work products, are processed through a series of steps detailed in this document. The goal is to maximise the utility and longevity of the new units and the taxonomies that use them.
The key words MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD, SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, in this specification, are to be interpreted as described in [IETF RFC 2119].
abstract element, bind, concept, concrete element, context, Discoverable Taxonomy Set (DTS), duplicate items, duplicate tuples, element, entity, equal, essence concept, fact, instance, item, least common ancestor, linkbase, period, taxonomy, tuple, unit, taxonomy schema, child, parent, sibling, grandparent, uncle, ancestor, XBRL instance, c-equal, p-equal, s-equal, u-equal, v-equal, x-equal, minimally conforming XBRL processor, fully conforming XBRL processor and any other terms not specifically defined elsewhere in this document but which are used and defined in the XBRL 2.1 specification. are as defined by [XBRL 2.1] .
BPB refers to the XBRL International Best Practices Board .
ISC refers to the XBRL International Steering Committee .
TAPWG refers to the Taxonomy Architecture Practice Working Group set up by the BPB.
TRTF refers to the Taxonomy Review Task Force set up by the BPB.
XSB refers to the XBRL International Standards Board .
The official language of XBRL International's own work products is English and the preferred spelling convention is UK English.
All documentation supporting a registry entry MUST be provided in English, and MAY be provided in additional languages.
Comments which are informative, but not essential to the understanding of the point at hand, are provided in footnotes. All footnotes are non-normative.
When referring to a specific element, it will be identified by
its namespace prefix and local name. For example, the root
element for a specification container element would be referred to as
Attributes are also identified by their local name and, where
appropriate, their namespace prefix. Attributes are
distinguished from elements by prefixing them by an
refers to the attribute with the name
When referring to any attribute, so long as it has a specific
namespace, the local name is replaced by an asterisk (
Thus, the notation
@xml:* specifies any attribute
in the namespace
The following highlighting is used for normative technical material in this document:
Text of the normative example.
The following highlighting is used for non-normative examples in this document:
Text of the helpful example.
Next paragraph of the helpful example.
Example 3 shows the formatting for non-normative examples of poor, discouraged or disallowed usage.
The example itself.
The process by which an entry is added to the UTR is described below. This is modelled on [TECH-WG-PROCESSES] but is shortened to reflect the fact that the nature of an UTR entry is significantly less pervasive than that of a specification or other work product that is the usual output of a Working Group.
In addition a "fast track" process is provided whereby units that do not necessarily have general applicability (and so are unlikely to qualify for RECOMMENDED status) can nevertheless be included in the UTR as "Acknowledged".
The process starts when the submitter creates a submission containing all of the information needed (as specified in [UTR STRUCTURE]) and requests the UTRAM to enter it into the UTR. The submitter MUST indicate whether they are seeking Acknowledged or RECOMMENDATION status. If they are seeking Acknowledged status then the subsequent steps are as detailed in Section 2.1, if they are seeking RECOMMENDATION status then the subsequent steps are as detailed in Section 2.2.
Submitters should note that the initial status of their submission MUST be "PROPOSED" (see [UTR STRUCTURE]).
A "fast track" process is provided to facilitate the inclusion of a unit in the UTR which may not have general applicability but which the submitter would, nevertheless, like to have documented in a publicly accessible fashion. A unit that successfully follows this "fast track" process will have an ending status of "ACK". As such it does not carry the same normative weight as a unit with "REC" status.
A unit that follows this track will have a status that is normative to the extent documented in Section 4 ("Normative Status of Unit Identifiers in the UTR and Software") of [UTR STRUCTURE]. Thus the process is, necessarily, considerably more rigorous than for a unit that follows the "fast track" process leading to "Acknowledged status".
The process by which an entry may be updated in the UTR is analogous. If errata are discovered in any units with "REC" status then a new version of the unit will be entered into the registry following the same process as that used for errata corrections to the specification itself. The effective date of the errata corrected version will be later than that of the original and will thus supersede it.
Unless a unit has the status of "REC" it may be withdrawn from the UTR at any time upon request of the original submitter. Such request MUST be made to the UTRAM by e-mail to the address published at http://www.xbrl.org/utr.
A unit with the status "REC" MAY NOT be withdrawn in this manner but MUST follow the process in Section 2.4 for rescinding a RECOMMENDED unit.
The process of rescinding a unit is not defined. If a situation arises whereby it becomes necessary to do so it will be defined following the model of [TECH-WG-PROCESSES].
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The attention of users of this document is directed to the possibility that compliance with or adoption of XBRL International specifications may require use of an invention covered by patent rights. XBRL International shall not be responsible for identifying patents for which a license may be required by any XBRL International specification, or for conducting legal inquiries into the legal validity or scope of those patents that are brought to its attention. XBRL International specifications are prospective and advisory only. Prospective users are responsible for protecting themselves against liability for infringement of patents. XBRL International takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Members of XBRL International agree to grant certain licenses under the XBRL International Intellectual Property Policy (www.xbrl.org/legal).
This document could not have been written without the contributions of many people.
|23 March 2011||Walter Hamscher||
Initial document based on the DTR process document.
|17 April 2011||Walter Hamscher||
|05 May 2011||Hugh Wallis||
Editorial for publication as PWD.
This appendix contains a list of the errata that have been incorporated into this document. This represents all those errata corrections that have been approved by the XBRL International Units Registry Task Force up to and including 05 May 2011. Hyperlinks to relevant e-mail threads may only be followed by those who have access to the relevant mailing lists. Access to internal XBRL mailing lists is restricted to members of XBRL International Inc.
No errata have been incorporated into this document.