Changes for page 4 General Notes for Implementers

Last modified by Artur on 2025/09/10 11:19

From 1.7 to 1.6 From 1.14 to 1.13

From version 1.13

edited by Helena
on 2025/06/08 23:34

Change comment: There is no comment for this version

To version 1.7

edited by Helena
on 2025/06/08 23:30

Change comment: There is no comment for this version

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@@ -103,7 +103,7 @@
  Further to the above, the mapping between the non-native data types is presented in the table below:
--|**SDMX Facet**|**XML Schema**|**JSON schema **"**pattern**"[[(% class="wikiinternallink wikiinternallink" %)^^~[1~]^^>>path:#_ftn1]](%%) **for "string" type**
++|**SDMX Facet**|**XML Schema**|**JSON schema **"**pattern**"[[^^~[1~]^^>>path:#_ftn1]] **for "string" type**
  |GregorianYear|xsd:gYear|(((
  "^-?([1-9][0-9]{3,}|0[0-9]{3})(Z|(\+|-)((0[0-
@@ -194,7 +194,7 @@
  This is used to unambiguously state that a date-time represents an observation at a single point in time. Therefore, if one wants to use SDMX for data which is measured at a distinct point in time rather than being reported over a period, the date-time representation can be used.
--Representation: xs:dateTime (YYYY-MM-DDThh:mm:ss)[[(% class="wikiinternallink wikiinternallink" %)^^~[2~]^^>>path:#_ftn2]]
++Representation: xs:dateTime (YYYY-MM-DDThh:mm:ss)[[^^~[2~]^^>>path:#_ftn2]]
  === 4.2.6 Standard Reporting Period ===
@@ -263,7 +263,7 @@
  Representation: common:ReportingWeekType (YYYY-Www, e.g. 2000-W53)
--Notes: There are either 52 or 53 weeks in a reporting year. This is based on the ISO 8601 definition of a week (Monday - Saturday), where the first week of a reporting year is defined as the week with the first Thursday on or after the reporting year start day.[[(% class="wikiinternallink wikiinternallink" %)^^~[3~]^^>>path:#_ftn3]](%%) The reporting week is always represented as two digits, therefore 1-9 are 0 padded (e.g. 01). This allows the values to be sorted chronologically using textual sorting methods.
++Notes: There are either 52 or 53 weeks in a reporting year. This is based on the ISO 8601 definition of a week (Monday - Saturday), where the first week of a reporting year is defined as the week with the first Thursday on or after the reporting year start day.[[^^~[3~]^^>>path:#_ftn3]] The reporting week is always represented as two digits, therefore 1-9 are 0 padded (e.g. 01). This allows the values to be sorted chronologically using textual sorting methods.
  **Reporting Day**:
@@ -295,7 +295,7 @@
 . **If the [PERIOD_INDICATOR] is W:**
 . **If [REPORTING_YEAR_START_DATE] is a Friday, Saturday, or Sunday:**
--Add[[(% class="wikiinternallink wikiinternallink" %)^^~[4~]^^>>path:#_ftn4]](%%) (P3D, P2D, or P1D respectively) to the [REPORTING_YEAR_START_DATE]. The result is the [REPORTING_YEAR_BASE].
++Add[[^^~[4~]^^>>path:#_ftn4]] (P3D, P2D, or P1D respectively) to the [REPORTING_YEAR_START_DATE]. The result is the [REPORTING_YEAR_BASE].
 .
 .
@@ -384,28 +384,29 @@
  In version 2.0 of SDMX there is a recommendation to use the time format attribute to gives additional information on the way time is represented in the message. Following an appraisal of its usefulness this is no longer required. However, it is still possible, if required , to include the time format attribute in SDMX-ML.
--|(% style="width:95px" %)Code|(% style="width:1520px" %)Format
--|(% style="width:95px" %)OTP|(% style="width:1520px" %)Observational Time Period: Superset of all SDMX time formats (Gregorian Time Period, Reporting Time Period, and Time Range)
--|(% style="width:95px" %)STP|(% style="width:1520px" %)Standard Time Period: Superset of Gregorian and Reporting Time Periods
--|(% style="width:95px" %)GTP|(% style="width:1520px" %)Superset of all Gregorian Time Periods and date-time
--|(% style="width:95px" %)RTP|(% style="width:1520px" %)Superset of all Reporting Time Periods
--|(% style="width:95px" %)TR|(% style="width:1520px" %)(((
--Time Range: Start time and duration (YYYY-MM-DD(Thh:mm:ss)?/<duration>)
++|Code|Format
++|OTP|Observational Time Period: Superset of all SDMX time formats (Gregorian Time Period, Reporting Time Period, and Time Range)
++|STP|Standard Time Period: Superset of Gregorian and Reporting Time Periods
++|GTP|Superset of all Gregorian Time Periods and date-time
++|RTP|Superset of all Reporting Time Periods
++|TR|(((
++Time        Range:        Start        time        and        duration          (YYYY-MM-
++
++DD(Thh:mm:ss)?/<duration>)
  )))
--|(% style="width:95px" %)GY|(% style="width:1520px" %)Gregorian Year (YYYY)
--|(% style="width:95px" %)GTM|(% style="width:1520px" %)Gregorian Year Month (YYYY-MM)
--|(% style="width:95px" %)GD|(% style="width:1520px" %)Gregorian Day (YYYY-MM-DD)
--|(% style="width:95px" %)DT|(% style="width:1520px" %)Distinct Point: date-time (YYYY-MM-DDThh:mm:ss)
--|(% style="width:95px" %)RY|(% style="width:1520px" %)Reporting Year (YYYY-A1)
--|(% style="width:95px" %)RS|(% style="width:1520px" %)Reporting Semester (YYYY-Ss)
--|(% style="width:95px" %)RT|(% style="width:1520px" %)Reporting Trimester (YYYY-Tt)
--|(% style="width:95px" %)RQ|(% style="width:1520px" %)Reporting Quarter (YYYY-Qq)
--|(% style="width:95px" %)RM|(% style="width:1520px" %)Reporting Month (YYYY-Mmm)
--|(% style="width:95px" %)RW|(% style="width:1520px" %)Reporting Week (YYYY-Www)
--|(% style="width:95px" %)RD|(% style="width:1520px" %)Reporting Day (YYYY-Dddd)
++|GY|Gregorian Year (YYYY)
++|GTM|Gregorian Year Month (YYYY-MM)
++|GD|Gregorian Day (YYYY-MM-DD)
++|DT|Distinct Point: date-time (YYYY-MM-DDThh:mm:ss)
++|RY|Reporting Year (YYYY-A1)
++|RS|Reporting Semester (YYYY-Ss)
++|RT|Reporting Trimester (YYYY-Tt)
++|RQ|Reporting Quarter (YYYY-Qq)
++|RM|Reporting Month (YYYY-Mmm)
++|RW|Reporting Week (YYYY-Www)
++|RD|Reporting Day (YYYY-Dddd)
--(% class="wikigeneratedid" id="HTable1:SDMX-MLTimeFormatCodes" %)
--**Table 1: SDMX-ML Time Format Codes**
++==== Table 1: SDMX-ML Time Format Codes ====
  === 4.2.9 Time Zones ===
@@ -432,11 +432,11 @@
  It has been possible since SDMX 2.0 for a Component to specify a representation of a time span. Depending on the format of the data message, this resulted in either an element with 2 XML attributes for holding the start time and the duration or two separate XML attributes based on the underlying Component identifier. For example, if REF_PERIOD were given a representation of time span, then in the Compact data format, it would be represented by two XML attributes; REF_PERIODStartTime (holding the start) and REF_PERIOD (holding the duration). If a new simple type is introduced in the SDMX schemas that can hold ISO 8601 time intervals, then this will no longer be necessary. What was represented as this:
-->(% style="font-size:18px" %) <Series REF_PERIODStartTime="2000-01-01T00:00:00" REF_PERIOD="P2M"/>
++<Series REF_PERIODStartTime="2000-01-01T00:00:00" REF_PERIOD="P2M"/>
  can now be represented with this:
-->(% style="font-size:18px" %) <Series REF_PERIOD="2000-01-01T00:00:00/P2M"/>
++<Series REF_PERIOD="2000-01-01T00:00:00/P2M"/>
  === 4.2.11 Notes on Formats ===
@@ -503,7 +503,7 @@
  * 2010-W28 or later (reporting year start day ~-~-07-01)^^6^^
  * 2010-D185 or later (reporting year start day ~-~-07-01)
--== 4.3 Versioning ==
++= 4.3 Versioning ==
  Versioning operates at the level of versionable and maintainable objects in the SDMX information model. Within the SDMX Structure and MetadataSet messages, there is a well-defined pattern for artefact versioning and referencing. The artefact identifiers are qualified by their version numbers – that is, an object with an Agency of "A", and ID of "X" and a version of "1.0.0" is a different object than one with an Agency of "A", an ID of "X", and a version of "1.1.0".
@@ -543,13 +543,17 @@
  The production versions of identifiable artefacts are assumed stable, i.e., they do not have an EXTENSION. This is because once in production, an artefact cannot change in any way, or it must change the version. For cases where an artefact is not static, like during the drafting, the version must indicate this by including an EXTENSION. Draft artefacts should not be used outside of a specific system designed to accommodate them. For most purposes, all artefacts should become stable before being used in production.
--=== 4.3.3 Legacy-versioned artefacts ===
++1.
++11.
++111. Legacy-versioned artefacts
  Organisations wishing to keep a maximum of backwards compatibility with existing implementations can continue using the previous 2-digit convention for version numbers (MAJOR.MINOR) as in the past, such as '2.3', but without the ‘isFinal’ property. The new SDMX 3.0 standard does not add any strict rules or guarantees about changes in those artefacts, since the legacy versioning rules were rather loose and non-binding, including the meaning of the ‘isFinal’ property, and their implementations were varying.
  In order to make artefacts immutable or changes truly predictable, a move to the new semantic versioning syntax is required.
--=== 4.3.4 Dependency management and references ===
++1.
++11.
++111. Dependency management and references
  New flexible dependency specifications with wildcarding allow for easier data model maintenance and enhancements for semantically versioned SDMX artefacts. This allows implementing a smart referencing mechanism, whereby an artefact may reference:
@@ -578,7 +578,8 @@
  Full details can be found in the SDMX RESTful web services specification.
--== 4.4 Structural Metadata Querying Best Practices ==
++1.
++11. Structural Metadata Querying Best Practices
  When querying for structural metadata, the ability to state how references should be resolved is quite powerful. However, this mechanism is not always necessary and can create an undue burden on the systems processing the queries if it is not used properly.
@@ -586,6 +586,7 @@
  When the referenced object is not known, then the reference resolution mechanism could be used. For example, suppose one wanted to find all category schemes and the related categorisations for a given maintenance agency. In this case, one could query for the category scheme by the maintenance agency and specify that parent and sibling references should be resolved. This would result in the categorisations which reference the categories in the matched schemes to be returned, as well as the object which they categorise.
++
  ----
  [[~[1~]>>path:#_ftnref1]] Regular expressions, as specified in [[W3C XML Schema Definition Language (XSD)>>url:https://www.w3.org/TR/xmlschema11-2/]][[ >>url:https://www.w3.org/TR/xmlschema11-2/]][[1.1 Part 2: Datatypes>>url:https://www.w3.org/TR/xmlschema11-2/]][[.>>url:https://www.w3.org/TR/xmlschema11-2/]]