Copyright © 2013 XBRL International Inc., All Rights Reserved.
Circulation of this Public Working Draft is unrestricted. This document is normative. Other documents may supersede this document. Recipients are invited to submit comments to utram@xbrl.org, and to submit notification of any relevant patent rights of which they are aware and provide supporting documentation.
1 Introduction
1.1 Relationship to other work
1.2 Terminology
1.3 Language
1.4 Document conventions
1.4.1 Typographic conventions
1.4.1.1 Definition notation
1.4.1.2 Footnote notation
1.4.1.3 Element and attribute notation
1.4.2 Formatting conventions
1.5 Namespaces and namespace prefixes
2 Syntax of Test Cases
3 UTR Structure Testing
4 UTR Content Testing
5 Normative Schemas
5.1 UTR Testcases File
A References
B Intellectual property status (non-normative)
C Acknowledgements (non-normative)
D Document history (non-normative)
E Errata corrections in this document
1 Namespaces and namespace prefixes
DTR
UTR
abstract element, bind, concept, concrete element, context, Discoverable Taxonomy Set (DTS), duplicate items, element, entity, equal, essence concept, fact, instance, item, least common ancestor, linkbase, period, taxonomy, 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
simple unit definition, complex unit definition, type match, present in the UTR, most specific ancestor in the UTR, measure match, measure-to-type match, division-to-type match, has a type, most specific type in the UTR, fact-to-UTR match, UTR-valid
The unit registry structure specification defines the syntax of a units registry (UTR) as well as validity of an XBRL instance with respect to any particular version of the registry.
The validity of a registry can be tested entirely against its XML Schema [XML Schema Structures] definition.
To test a processor meant to determine validity of instances with respect to the content of a particular registry file, this conformance suite provides a set of instances along with a characterization of each as "good" or "nogood". A processor that deems all of the good instances to be valid, and all of the nogood instances to be invalid with respect to the UTR conforms to the test suite.
A processor may also be tested with respect to a particular version of a UTR using a set of instances that exercises a representative sample of the unit entries in that version of the UTR.
This document pertains to XBRL as defined in the XBRL Specification [XBRL 2.1] and to the UTR defined in the UTR Structure Specification [UTR STRUCTURE].
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, element, entity, equal, essence concept, fact, instance, item, least common ancestor, linkbase, period, taxonomy, 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] .
simple unit definition, complex unit definition, type match, present in the UTR, most specific ancestor in the UTR, measure match, measure-to-type match, division-to-type match, has a type, most specific type in the UTR, fact-to-UTR match, UTR-valid are as defined in the UTR Structure Specification [UTR STRUCTURE].
DTR refers to the Data Types Registry that is the subject of a different specification.
UTR refers to the Units Registry that is the subject of this specification.
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
of a versioning report would be referred to as <ver:report> .
Attributes are also identified by their local name and, where
appropriate, their namespace prefix. Attributes are
distinguished from elements by prefixing them by an
@
symbol. Thus,
@id
refers to the attribute with the name id.
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
http://www.w3.org/XML/1998/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 non-normative example.
The following highlighting is used for non-normative examples of poor, discouraged or disallowed usage.
Text of the discouraged example.
Namespace prefixes [XML Names] will be used for elements and attributes in the form
<ns:name> where ns is the namespace prefix and name is the local name.
Throughout this specification, the mappings from namespace prefixes to actual namespaces is consistent with
Table 1.
The prefix column in Table 1 is non-normative. The namespace URI column is normative.
| Prefix | Namespace URI |
|---|---|
| iso4217 | http://www.xbrl.org/2003/iso4217 |
| utr | http://www.xbrl.org/2009/utr |
| utre | http://www.xbrl.org/2009/utr/errors |
| xbrli | http://www.xbrl.org/2003/instance |
| conf | http://xbrl.org/2005/conformance |
Each test case is described in a document having root element <testcase> . A single testcase consists
of a number of variations, with each <variation> containing a description of the input files and the
expected errors or warnings that a conforming processor must emit to indicate that the set of inputs consitutes
an "invalid" or "nogood" input. A variation with no expected error or warning results means that the conforming
processor must emit no errors or warnings and is "valid" or "good". Therefore, a processor will "pass" or "fail"
each variation depending on whether it produces the expected result, be that valid or invalid. The variations
are grouped according to topics covered in the UTR structure specification [UTR STRUCTURE].
An "index" file contains elements defining the location of each testcase within a test suite.
Folder conf/utr-structure/malformed-utrs contains a set of UTR registry files that are XML
Schema-invalid. There is one file per MUST requirement in [UTR STRUCTURE].
There is no testcase file provided because ordinarily it is is not the UTR processor itself responsible for
ensuring the validity of the registry.
Folder conf/utr-structure/index.xml contains references to a set of individual testcase files
covering validation cases including simple units, division units, supertype matching and QName matching [UTR STRUCTURE]. Folder conf/utr-structure/taxonomy contains a simple taxonomy used in
these testcases. Implementations may wish to use the conf/utr-structure/catalog.xml file to avoid
internet access for the DTR schemas; local copies are in conf/utr-structure/schemas.
Note that these testcases all depend on the use of a specific utr file,
conf/utr-structure/utr-for-structure-conformance-tests.xml. A processor being tested for
compliance with the UTR structure specification requires some means of using that file instead of the published
utr file at http://www.xbrl.org/utr/utr.xml (file conf/utr-structure/catalog.xml does
not contain a remapping entry for utr.xml).
Each published version of the UTR implicitly defines a set of variations derived from the individual unit
entries. In addition to testing a UTR processor for general compliance with the UTR structure validation
process, implementors may wish to verify that their processor correctly implements a specific UTR version.
Folders named conf/utr/YYYY-MM-DD contain an index.xml file and supporting files
for each version of the UTR published on YYYY-MM-DD.
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This document could not have been written without the contributions of many people.
| Date | Author | Details |
|---|---|---|
| 17 May 2013 | Walter Hamscher |
Initial version. |
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 Link Role Registry Approval Manager up to and including 17 May 2013. 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.