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

From version 16.5
edited by Helena
on 2025/05/16 13:20
Change comment: There is no comment for this version
To version 7.7
edited by Helena
on 2025/05/14 13:37
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -SDMX STANDARDS
1 +1 Overview
Parent
... ... @@ -1,1 +1,0 @@
1 -Methodology.WebHome
Content
... ... @@ -65,7 +65,7 @@
65 65  
66 66  Version 3.0 introduces breaking changes into the web services API, transmission formats and information model. A summary is given in the table below.
67 67  
68 -== 2.1 Web Services API ==
68 +== //2.1 Web Services API// ==
69 69  
70 70  (% style="width:948.039px" %)
71 71  |**REST API**|(% style="width:818px" %)(((
... ... @@ -86,8 +86,10 @@
86 86  )))
87 87  |**SOAP API**|(% style="width:818px" %)The SOAP API has been deprecated.
88 88  
89 -== 2.2 Transmission Formats ==
89 +== //2.2 Transmission Formats// ==
90 90  
91 +:
92 +
91 91  (((
92 92  (% style="width:952.039px" %)
93 93  |(% style="width:130px" %)**SDMX-ML**|(% style="width:820px" %)(((
... ... @@ -122,7 +122,7 @@
122 122  |(% style="width:130px" %)**SDMX-CSV**|(% style="width:820px" %)The CSV data and reference metadata messages are not backwardly compatible with those under version 2.1 due to changes to the structure of the messages needed to support new features such as the improved REST API data queries.
123 123  )))
124 124  
125 -== 2.3 Information Model ==
127 +== //2.3 Information Model// ==
126 126  
127 127  (((
128 128  (% style="width:955.039px" %)
... ... @@ -151,7 +151,10 @@
151 151  
152 152  //Conversion guidance for implementors//
153 153  
154 -A version 2.1 Metadata Structure Definition can be converted to the version 3.0 model under some circumstances, but target information is either lost or has to be translated into a metadataflow. Further, conversion of a Data Structure Definition for collecting reference metadata against a dataset would need to make changes to the dataset’s Data Structure Definition. As the Data Structure Definition may not actually be specified, judgement would need to be taken, perhaps determining the most likely candidate by examining which already have metadata reported against their datasets. A 2.1 metadata report could be converted to a version 3.0 Metadataset if it is attached to a structure, but requires a Metadata Provision Agreement which would need to be created if not already in existence.
156 +A version 2.1 Metadata Structure Definition can be converted to the version 3.0 model under some circumstances, but target information is either lost or has to be translated into a metadataflow. Further, conversion of a Data Structure Definition for collecting reference metadata against a dataset would need to make changes to the dataset’s Data Structure Definition. As the Data Structure Definition may not actually be specified, judgement would need to be taken, perhaps determining the most likely candidate by examining which
157 +)))
158 +|(% style="width:132px" %) |(% style="width:819px" %)(((
159 +already have metadata reported against their datasets. A 2.1 metadata report could be converted to a version 3.0 Metadataset if it is attached to a structure, but requires a Metadata Provision Agreement which would need to be created if not already in existence.
155 155  
156 156  Conversion from the version 3.0 model to version 2.1 cannot be performed reliably. The process would need target information to be derived from analysis of the Metadataflows and Metadata Provision Agreements. Depending on the complexity it may not be possible to express that information in a version 2.1 Data Structure Definition.
157 157  )))
... ... @@ -177,7 +177,7 @@
177 177  
178 178  = 3 Information Model =
179 179  
180 -== 3.1 Version 3.0 Information Model ==
185 +== //3.1 Version 3.0 Information Model// ==
181 181  
182 182  [[image:SDMX 3-0-0 Major Changes FINAL-1.0_en_6fc573fe.png||height="404" width="718"]]
183 183  
... ... @@ -187,7 +187,7 @@
187 187  
188 188  A number of ancillary structures including organisation schemes, process and reporting taxonomy are unchanged and have not been shown. Similarly, Organisation Scheme Map and Reporting Taxonomy Map have been omitted for simplicity. A schematic of the 2.1 model is given in Appendix A for comparison purposes.
189 189  
190 -== 3.2 Key Changes from Version 2.1 ==
195 +== //3.2 Key Changes from Version 2.1// ==
191 191  
192 192  New Maintainable Artefacts
193 193  
... ... @@ -215,8 +215,7 @@
215 215  Removed Maintainable Artefacts
216 216  
217 217  * Structure Set – replaced by Structure Map and the four item scheme maps
218 -* Hierarchical Codelist – replaced by Hierarchy and Hierarchy Association
219 -* Constraint – replaced by Data Constraint and Metadata Constraint
223 +* Hierarchical Codelist – replaced by Hierarchy and Hierarchy Association • Constraint – replaced by Data Constraint and Metadata Constraint
220 220  
221 221  Changed Maintainable Artefacts
222 222  
... ... @@ -230,7 +230,7 @@
230 230  
231 231  * GeospatialInformation – a string type where the value is an expression defining a set of geographical features using a purpose-designed syntax
232 232  
233 -== 3.3 Areas Unchanged from Version 2.1 ==
237 +== //3.3 Areas Unchanged from Version 2.1// ==
234 234  
235 235  The following areas of the information model are unchanged from version 2.1:
236 236  
... ... @@ -243,12 +243,12 @@
243 243  * Reporting taxonomy
244 244  * Process
245 245  
246 -== 3.4 Reference Metadata ==
250 +== //3.4 Reference Metadata// ==
247 247  
248 248  Reference metadata has been substantially re-designed for version 3.0 to simplify the model and better support practical use cases.
249 249  
250 -(% class="wikigeneratedid" id="HSimplifyMetadataStructureDefinition" %)
251 -**Simplify Metadata Structure Definition**
254 +=== Simplify Metadata Structure Definition ===
255 +
252 252  The Metadata Structure Definition (MSD) has been simplified to remove target information, and the support of multiple report structures. The MSD now only contains Metadata Attributes which are used to define the structure of a report.
253 253  
254 254  [[image:SDMX 3-0-0 Major Changes FINAL-1.0_en_ad5f5c97.png||height="346" width="494"]]
... ... @@ -259,8 +259,8 @@
259 259  
260 260  //Figure 3 the simplified version 3.0 MSD//
261 261  
262 -(% class="wikigeneratedid" id="HChangetoreferencemetadatareportedagainstdata" %)
263 -**Change to reference metadata reported against data**
266 +=== Change to reference metadata reported against data ===
267 +
264 264  Reference metadata associated with datasets, data series or observations are now reported with the data. The dataset’s DSD must reference an MSD to define the structure of its reference metadata. In practice reference metadata for data are transmitted as part of the data message. The metadata attributes are treated in a similar way to the data attributes appearing in the message at the dataset, data series or individual observation level as appropriate. In contrast to simple data attributes, metadata attributes defined by an MSD can be organised into a hierarchical structure as illustrated in Figure 3 above. For this reason, metadata attributes appear in data messages structured in the same way as metadata messages.
265 265  
266 266  The SDMX-ML example below is an excerpt from a structure specific data message illustrating reporting of reference metadata with a hierarchical structure at the observation level.
... ... @@ -271,117 +271,179 @@
271 271  * TITLE – a multi-lingual data attribute
272 272  * SOURCE_AGENCY – a multi-value data attribute
273 273  
274 -> <Obs xsi:type="dsd:ObsType" OBS_VALUE="112" OBS_STAUS=”A” TIME_PERIOD="2010-09">
275 -> <!—- complex multi-value and multi-lingual data attributes ~-~->
276 -> <Comp id="TITLE" xsi:type="ns1:TITLE_ATTRIBUTE">
277 -> <Value>
278 -> <common:Text xml:lang="en">Some English Text</common:Text>
279 -> <common:Text xml:lang="fr">Quelques textes en anglais</common:Text>
280 -> </Value>
281 -> </Comp>
282 -> <Comp id="SOURCE_AGENCY" xsi:type="ns1:SOURCE_AGENCY_ATTRIBUTE">
283 -> <Value>4F0</Value>
284 -> <Value>4D0</Value>
285 -> <Value>CZ2</Value>
286 -> </Comp>
287 -> <!—- metadata attributes are reported like in metadata messages ~-~->
288 -> <Metadata>
289 -> <Attribute id="COLLECTION">
290 -> <Attribute id="METHOD">
291 -> <Text lang="en">AAA</Text>
292 -> </Attribute>
293 -> </Attribute>
294 -> <Attribute id="CONTACT">
295 -> <Value>CONTACT 1</Value>
296 -> <Attribute id="NAME">
297 -> <Value>Contact 1 Name 1</Value>
298 -> </Attribute>
299 -> <Attribute id="NAME">
300 -> <Value>Contact 1 Name 2</Value>
301 -> </Attribute>
302 -> </Attribute>
303 -> <Attribute id="CONTACT">
304 -> <Value>CONTACT 2</Value>
305 -> <Attribute id="NAME">
306 -> <Value>Contact 2 Name 1</Value>
307 -> </Attribute>
308 -> <Attribute id="NAME">
309 -> <Value>Contact 2 Name 2</Value>
310 -> </Attribute>
311 -> </Attribute>
312 -> </Metadata>
313 -> </Obs>
278 +<Obs xsi:type="dsd:ObsType" OBS_VALUE="112" OBS_STAUS=”A” TIME_PERIOD="2010-09">
314 314  
315 -(% class="wikigeneratedid" id="HNew-MetadataProvisionAgreement" %)
316 -**New - Metadata Provision Agreement**
280 +<!—- complex multi-value and multi-lingual data attributes ~-~->
281 +
282 +<Comp id="TITLE" xsi:type="ns1:TITLE_ATTRIBUTE">
283 +
284 +<Value>
285 +
286 +<common:Text xml:lang="en">Some English Text</common:Text>
287 +
288 +<common:Text xml:lang="fr">Quelques textes en anglais</common:Text>
289 +
290 +</Value>
291 +
292 +</Comp>
293 +
294 +<Comp id="SOURCE_AGENCY" xsi:type="ns1:SOURCE_AGENCY_ATTRIBUTE">
295 +
296 +<Value>4F0</Value>
297 +
298 +<Value>4D0</Value>
299 +
300 +<Value>CZ2</Value>
301 +
302 +</Comp>
303 +
304 +<!—- metadata attributes are reported like in metadata messages ~-~->
305 +
306 +<Metadata>
307 +
308 +<Attribute id="COLLECTION">
309 +
310 +<Attribute id="METHOD">
311 +
312 +<Text lang="en">AAA</Text>
313 +
314 +</Attribute>
315 +
316 +</Attribute>
317 +
318 +<Attribute id="CONTACT">
319 +
320 +<Value>CONTACT 1</Value>
321 +
322 +<Attribute id="NAME">
323 +
324 +<Value>Contact 1 Name 1</Value>
325 +
326 +</Attribute>
327 +
328 +<Attribute id="NAME">
329 +
330 +<Value>Contact 1 Name 2</Value>
331 +
332 +</Attribute>
333 +
334 +</Attribute>
335 +
336 +<Attribute id="CONTACT">
337 +
338 +<Value>CONTACT 2</Value>
339 +
340 +<Attribute id="NAME">
341 +
342 +<Value>Contact 2 Name 1</Value>
343 +
344 +</Attribute>
345 +
346 +<Attribute id="NAME">
347 +
348 +<Value>Contact 2 Name 2</Value>
349 +
350 +</Attribute>
351 +
352 +</Attribute>
353 +
354 +</Metadata>
355 +
356 +</Obs>
357 +
358 +=== New - Metadata Provision Agreement ===
359 +
317 317  In version 2.1 a Provision Agreement could be used to report information against a Dataflow or Metadataflow. From version 3.0 this is managed by two separate structures, the Data Provision Agreement and the Metadata Provision Agreement.
318 318  
319 -(% class="wikigeneratedid" id="HMovetargettoMetadataflowandMetadataProvisionAgreement" %)
320 -**Move target to Metadataflow and Metadata Provision Agreement**
362 +=== Move target to Metadataflow and Metadata Provision Agreement ===
363 +
321 321  For reference metadata that is reported against structures, the allowable targets information which is used to specify what structures the reference metadata can be reported against, has moved to the Metadataflow and can be further refined in the Metadata Provision Agreement.
322 322  
323 -(% class="wikigeneratedid" id="HAddmaintainablepropertiestoreferencemetadata" %)
324 -**Add maintainable properties to reference metadata**
366 +=== Add maintainable properties to reference metadata ===
367 +
325 325  A Metadataset now has mandatory identification information, (owner id, id, version) enabling metadata providers to uniquely identify their reports for create, update or delete maintenance operations.
326 326  
327 -== 3.5 Microdata Exchange ==
370 +== //3.5 Microdata Exchange// ==
328 328  
329 329  Several changes have been made the Data Structure Definition to support microdata use cases in addition to aggregated time series.
330 330  
331 -(% class="wikigeneratedid" id="HMultiplemeasures" %)
332 -**Multiple measures**
333 -Multiple measures are a common characteristic of microdatasets. To support this use case, the MeasureDimension has been deprecated and replaced with the option to define zero or more measures. Measures now act like any other component in that they use concepts, can have their own local coded or uncoded representation defined within the Data Structure Definition, and can be either mandatory or conditional. Creating a measure with the “MEASURE” concept role applied emulates the version 2.1 MeasureDimension behaviour as illustrated in the SDMX-ML example below:
374 +=== Multiple measures ===
334 334  
335 -> <str:MeasureList id=”MeasureDescriptor”>
336 -> <str:Measure id=”OBS_VALUE” minOccurs=”1” maxOccurs=”1” usage=”mandatory” > <str:ConceptIdentity>
337 -> <Ref id=”OBS_VALUE” maintainableParentID=”CONCEPTS” agencyID=”SDMX” maintainableParentVersion=”1.0.0” />
338 -> </str:ConceptIdentity>
339 -> <str:LocalRepresentation>
340 -> <str:TextFormat textType=”String” isMultiLingual=”true” />
341 -> </str:LocalRepresentation>
342 -> <str:ConceptRole>
343 -> <Ref id=”MEASURE” maintainableParentID=”SDMX_CONCEPT_ROLES” agencyID=”SDMX” maintainableParentVersion=”1.0.0” />
344 -> </str:ConceptRole>
345 -> </str:Measure>
346 -> ...
347 -> <str:Measure>
348 -> </str:MeasureList>
376 +Multiple measures are a common characteristic of microdatasets. To support this use case, the MeasureDimension has been deprecated and replaced with the option to define zero or more measures. Measures now act like any other component in that they use concepts, can have their own local coded or uncoded representation defined within the
349 349  
350 -(% class="wikigeneratedid" id="HMulti-valuemeasuresandattributes" %)
351 -**Multi-value measures and attributes**
352 -Both measures and attributes have been extended with the option to take ‘arrays’ of 193 multiple coded or uncoded values. This supports use cases like multiple observation 194 status flags. New //minOccurs// and //maxOccurs// properties define the valid number of 195 values. The //usage// property separately defines whether the measure or attribute is //mandatory// or optional. In the SDMX-ML measure example above, the properties //minOccurs=”1” maxOccurs=”1” usage=”mandatory”// specify that OBS_VALUE must be 198 reported, and can only consist of a single value.
378 +Data Structure Definition, and can be either mandatory or conditional. Creating a measure with the “MEASURE” concept role applied emulates the version 2.1
353 353  
354 -(% class="wikigeneratedid" id="HAttributesrelationshiptomeasures" %)
355 -**Attributes relationship to measures**
380 +MeasureDimension behaviour as illustrated in the SDMX-ML example below:
381 +
382 +<str:MeasureList id=”MeasureDescriptor”>
383 +
384 +<str:Measure id=”OBS_VALUE” minOccurs=”1” maxOccurs=”1” usage=”mandatory” > <str:ConceptIdentity>
385 +
386 +<Ref id=”OBS_VALUE” maintainableParentID=”CONCEPTS” agencyID=”SDMX” maintainableParentVersion=”1.0.0” />
387 +
388 +</str:ConceptIdentity>
389 +
390 +<str:LocalRepresentation>
391 +
392 +<str:TextFormat textType=”String” isMultiLingual=”true” />
393 +
394 +</str:LocalRepresentation>
395 +
396 +<str:ConceptRole>
397 +
398 +<Ref id=”MEASURE” maintainableParentID=”SDMX_CONCEPT_ROLES” agencyID=”SDMX” maintainableParentVersion=”1.0.0” />
399 +
400 +</str:ConceptRole>
401 +
402 +</str:Measure>
403 +
404 +...
405 +
406 +<str:Measure>
407 +
408 +</str:MeasureList>
409 +
410 +=== Multi-value measures and attributes ===
411 +
412 +Both measures and attributes have been extended with the option to take ‘arrays’ of 193 multiple coded or uncoded values. This supports use cases like multiple observation 194 status flags. New //minOccurs// and //maxOccurs// properties define the valid number of 195 values. The //usage// property separately defines whether the measure or attribute is
413 +
414 +//mandatory// or optional. In the SDMX-ML measure example above, the properties
415 +
416 +//minOccurs=”1” maxOccurs=”1” usage=”mandatory”// specify that OBS_VALUE must be 198 reported, and can only consist of a single value.
417 +
418 +=== Attributes relationship to measures ===
419 +
356 356  In addition to attaching attributes to a specific level within the dataset, their relationship 202 to measures can also be defined.
357 357  
358 -(% class="wikigeneratedid" id="HValuelists" %)
359 -**Value lists**
360 -Value lists help in modelling microdata by providing an enumeration similar to code lists 206 but allowing any string values without being restricted to the rules of SDMX identifiers. That allows ValueItems (the equivalent to Code) to contain symbols like ‘¥’ and ‘€’, but also means they are not identifiable.
422 +=== Value lists ===
361 361  
362 -== 3.6 Geospatial Data Exchange ==
424 +Value lists help in modelling microdata by providing an enumeration similar to code lists 206 but allowing any string values without being restricted to the rules of SDMX identifiers.
363 363  
426 +That allows ValueItems (the equivalent to Code) to contain symbols like ‘¥’ and ‘€’, but 208 also means they are not identifiable.
427 +
428 +== //3.6 Geospatial Data Exchange// ==
429 +
364 364  The version 3.0 model has been extended to provide explicit support for geospatial data.
365 365  
366 -(% class="wikigeneratedid" id="HGeospatialInformationtype" %)
367 -**GeospatialInformation type**
432 +=== GeospatialInformation type ===
433 +
368 368  A new GeospatialInformation string type has been added which can be used as the 214 representation for any dimension, attribute or measure component. The value which is a 215 string expression conforming to the syntax defined in Section 6 of the technical 216 specifications precisely defines a ‘Geo Feature Set’ – a collection of geographical 217 features like points, lines or polygons. Its use is recommended in conjunction with the “GEO_FEATURE_SET” concept role.
369 369  
370 -(% class="wikigeneratedid" id="HGeospatialcodelists" %)
371 -**Geospatial code lists**
436 +=== Geospatial code lists ===
437 +
372 372  Two new specialised types of code list have been added where the definition of each code includes additional geospatial information in addition to the standard ID, name and description:
373 373  
374 374  * GeographicCodelist – each item includes an element to represent a specific Geo Feature Set which is described using the same expression syntax as for GeospatialInformation type.
375 375  * GeoGridCodelist – A code list defining a geographical grid composed of cells representing regular squared portions of the Earth. Each item references a cell within the grid.
376 376  
377 -== 3.7 Structure Mapping ==
443 +=== //3.7 Structure Mapping// ===
378 378  
379 379  The Structure Set in version 2.1 is a container for many mapping structures including Data Structure Map, Codelist Map and Concept Map. For version 3.0 the Structure Set artefact has been deprecated and replaced with a number of new maintainables giving better flexibility and reusability, specifically: Structure Map, Concept Scheme Map, Representation Map, Reporting Taxonomy Map, Category Scheme Map and Organisation Scheme Map.
380 380  
381 381  The version 2.1 Codelist Map been replaced with Representation Map which allows mappings to be defined between any combination of Code Lists, Value Lists and noncoded representations such as text strings and numbers.
382 382  
383 -(% class="wikigeneratedid" id="HMany-to-manysourceandtargetcomponents" %)
384 -**Many-to-many source and target components**
449 +==== Many-to-many source and target components ====
450 +
385 385  Structure mapping rules may be defined with both multiple source components and multiple target components in contrast to version 2.1 where only one source and target was allowed. That supports many-to-many (n-n) mapping use cases where the output of a mapping rule may be dependent on the combination of a number of input components. For instance:
386 386  
387 387  Set the output component INDICATOR=”DE_A” if the input components are FREQ=”A” and REF_AREA=”DE”.
... ... @@ -391,21 +391,22 @@
391 391  Set the output components FREQ=”A”, REF_AREA=”DE” if the input component INDICATOR=”DE_A”.
392 392  
393 393  **Fixed source and target**
460 +
394 394  The Structure Map may now define input or output components which have a fixed value.
395 395  
396 -(% class="wikigeneratedid" id="HTimerepresentationsmapping" %)
397 -**Time representations mapping**
463 +==== Time representations mapping ====
464 +
398 398  Non SDMX time representations may now be described in a Structure Map, allowing them to be mapped into SDMX time formats.
399 399  
400 -(% class="wikigeneratedid" id="HRegularexpressionandsubstringmappings" %)
401 -**Regular expression and substring mappings**
467 +==== Regular expression and substring mappings ====
468 +
402 402  All item maps allow the use of regular expressions and substrings to match source values, specifically: Concept Scheme Map, Reporting Taxonomy Map, Category Scheme Map and Organisation Scheme Map.
403 403  
404 -(% class="wikigeneratedid" id="HItemmapsvalidityperiod" %)
405 -**Item maps validity period**
471 +==== Item maps validity period ====
472 +
406 406  Item maps may further define the period for which the mapping is valid, meaning the mapping rule will only be applied if the row of information being mapped is within the period.
407 407  
408 -== 3.8 Constraints ==
475 +=== //3.8 Constraints// ===
409 409  
410 410  Constraints in version 3.0 are modelled using two separate artefacts which replace the version 2.1 content constraint:
411 411  
... ... @@ -420,17 +420,17 @@
420 420  
421 421  Attachment constraints have been deprecated due to a lack of use cases.
422 422  
423 -== 3.9 Code List Extension ==
490 +=== //3.9 Code List Extension// ===
424 424  
425 425  In addition to the two new specialised geospatial forms, the option has been added to define a code list as an extension of, or by inheriting codes from, other lists. An optional prefix can be added to inherited codes to disambiguate duplicates.
426 426  
427 427  This feature allows new code lists to be easily derived from existing lists without the need to make and manually maintain copies. When querying for extended code list structures using the REST API, the option has been added to retrieve either the definition or the materialised list. Traditional literal lists of codes continue to be supported.
428 428  
429 -== 3.10 Discriminated Union of Code Lists ==
496 +=== //3.10 Discriminated Union of Code Lists// ===
430 430  
431 431  Combining code list extension with wildcarded constraints solves the discriminated union of code lists problem where a classification or breakdown has multiple “variants” which are all valid but mutually exclusive. A common example is economic activity where several alternative classification schemes are in use including ISIC revisions 1 to 4 and NACE as used in the European Community.
432 432  
433 -== 3.11 Code Hierarchies ==
500 +=== //3.11 Code Hierarchies// ===
434 434  
435 435  Code hierarchies allow the definition of complex hierarchies of codes from potentially multiple lists for data discovery purposes. Hierarchical Codelist has been deprecated and replaced by two new artefacts: Hierarchy – the actual hierarchy of codes, and Hierarchy Association links hierarchies directly to any other identifiable object, a capability missing 312 from the version 2.1 model. Further, the linkage can be within a particular context, for instance linking a hierarchy to a dimension within the context of a specific Dataflow (dimension REF_AREA in the context of the ECB:EXR Dataflow).
436 436  
... ... @@ -451,6 +451,7 @@
451 451  Examples:
452 452  
453 453  SDMX:CL_AREA(1.0.0)
521 +
454 454  SDMX:CL_AREA(2.3.2)
455 455  
456 456  == Dependency management ==
... ... @@ -457,9 +457,10 @@
457 457  
458 458  Additional constructs are possible for dependency management when referencing structures. For instance:
459 459  
460 -2.3+.1  Means the currently latest available version >= “2.3.1” and < “3.0.0” (all backwards compatible versions >= “2.3.1”).
461 -2+.3.1  Means the currently latest available version >= “2.3.1” (even if not backwards compatible).
528 +2.3+.1 Means the currently latest available version >= “2.3.1” and < “3.0.0” (all backwards compatible versions >= “2.3.1”).
462 462  
530 +2+.3.1 Means the currently latest available version >= “2.3.1” (even if not backwards compatible).
531 +
463 463  == Draft structures ==
464 464  
465 465  A key principle is that semantically versioned structures are immutable and must not be changed without a corresponding change to the version number, except where explicitly marked as draft using extensions to the version number.
... ... @@ -466,15 +466,17 @@
466 466  
467 467  MAJOR.MINOR.PATCH-EXTENSION
468 468  
469 -1.10.0-draft  Means that version 1.10.0 is still being modified and may change – equivalent to setting isFinal=false in SDMX 2.1.
470 -1.10.0-unstable  Alternative to -draft.
471 -1.10.0-notfinal  Alternative to -draft.
538 +1.10.0-draft Means that version 1.10.0 is still being modified and may change – equivalent to setting isFinal=false in SDMX 2.1.
472 472  
540 +1.10.0-unstable Alternative to -draft.
541 +
542 +1.10.0-notfinal Alternative to -draft.
543 +
473 473  The SDMX 2.1 isFinal property is deprecated in 3.0.
474 474  
475 475  = 5 REST Web Services API =
476 476  
477 -== 5.1 Simplified list of resources ==
548 +== //5.1 Simplified list of resources// ==
478 478  
479 479  The version 3.0 REST API has just five main resources:
480 480  
... ... @@ -488,7 +488,7 @@
488 488  
489 489  This and changes in the URLs and query parameters on the data, availability and metadata resources means that, with the exception of schema queries, the version 3.0 API is not backwardly compatible.
490 490  
491 -== 5.2 Improved data queries ==
562 +== //5.2 Improved data queries// ==
492 492  
493 493  Data queries have been changed to provide more granular selections from contexts wider than just a Dataflow.
494 494  
... ... @@ -527,7 +527,7 @@
527 527  
528 528  /data/dataflow/ESTAT/ICP/1.0.0/M…A.ANR,M…A.INX,M…B.CTG
529 529  
530 -== 5.3 Improved reference metadata queries ==
601 +== //5.3 Improved reference metadata queries// ==
531 531  
532 532  Reference metadata queries have been improved with a number of new options to retrieve metadata reports.
533 533  
... ... @@ -543,7 +543,7 @@
543 543  
544 544  /metadata/structure/datastructure/BIS/BIS_CBS/1.0
545 545  
546 -== 5.4 Structural metadata maintenance ==
617 +== //5.4 Structural metadata maintenance// ==
547 547  
548 548  Support has been added for maintenance of structural metadata.
549 549  
... ... @@ -551,7 +551,7 @@
551 551  
552 552  = 6 XML, JSON, CSV and EDI Transmission formats =
553 553  
554 -== 6.1 SDMX-ML ==
625 +== //6.1 SDMX-ML// ==
555 555  
556 556  The SDMX-ML XML messages have been modified and updated for version 3.0. While they broadly follow the same principles, there have been significant changes which break backward compatibility.
557 557  
... ... @@ -637,7 +637,7 @@
637 637  
638 638  The option to reference structures using Agency, ID and Version has been removed. From SDMX version 3.0 URN is used for all referencing purposes with the exception of local references such as where groups reference dimensions within a DSD.
639 639  
640 -== 6.2 SDMX-JSON ==
711 +== //6.2 SDMX-JSON// ==
641 641  
642 642  Like SDMX-ML, the SDMX-JSON messages have been significantly modified and updated for version 3.0. They are not backwardly compatible with version 2.1.
643 643  
... ... @@ -657,7 +657,7 @@
657 657  
658 658  As for SDMX-ML, the option to reference structures using Agency, ID and Version has been removed with URN used for all non-local referencing purposes.
659 659  
660 -== 6.3 SDMX-CSV ==
731 +== //6.3 SDMX-CSV// ==
661 661  
662 662  CSV in SDMX is used transmission of data and reference metadata only.
663 663  
... ... @@ -675,7 +675,7 @@
675 675  
676 676  The SDMX-CSV metadata message is new for version 3.0 and, like the SDMX-ML and SDMX-JSON equivalents, is used for the transmission reference metadata sets.
677 677  
678 -=== 6.4 EDI deprecation ===
749 +=== //6.4 EDI deprecation// ===
679 679  
680 680  The EDI format for transmission of both structures and data has been deprecated. Version 3.0 is therefore not backwardly compatible with legacy EDI messages.
681 681  
SUZ.Methodology.Code.MethodologyClass[0]