Changes for page 13 Structure Mapping

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

From version 13.1
edited by Helena
on 2025/05/16 13:08
Change comment: There is no comment for this version
To version 14.5
edited by Helena
on 2025/05/19 14:23
Change comment: Update document after refactoring.

Summary

Details

Page properties
Parent
... ... @@ -1,0 +1,1 @@
1 +Methodology.SDMX 3\.0 Standards\. Section 6\. Technical notes.WebHome
Content
... ... @@ -4,28 +4,28 @@
4 4  
5 5  == 13.1 Introduction ==
6 6  
7 -The purpose of SDMX structure mapping is to transform datasets from one dimensionality to another. In practice, this means that the input and output datasets conform to different Data Structure Definition.
7 +The purpose of [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] structure mapping is to transform [[datasets>>doc:xwiki:Glossary.Data set.WebHome]] from one dimensionality to another. In practice, this means that the input and output [[datasets>>doc:xwiki:Glossary.Data set.WebHome]] conform to different Data Structure Definition.
8 8  
9 -Structure mapping does not alter the observation values and is not intended to perform any aggregations or calculations.
9 +Structure mapping does not alter the [[observation values>>doc:xwiki:Glossary.Observation value.WebHome]] and is not intended to perform any aggregations or calculations.
10 10  
11 -An input series maps to:
11 +An input series (% style="color:#2ecc71" %)maps(%%) to:
12 12  
13 13  1. Exactly one output series; or
14 -1. Multiple output series with different Series Keys, but the same observation values; or
15 -1. Zero output series where no source rule matches the input Component values.
14 +1. Multiple output series with different [[Series Keys>>doc:xwiki:Glossary.Series key.WebHome]], but the same [[observation values>>doc:xwiki:Glossary.Observation value.WebHome]]; or
15 +1. Zero output series where no source rule matches the input [[Component>>doc:xwiki:Glossary.Component.WebHome]] values.
16 16  
17 17  Typical use cases include:
18 18  
19 19  * Transforming received data into a common internal structure;
20 20  * Transforming reported data into the data collector's preferred structure;
21 -* Transforming unidimensional datasets{{footnote}}Unidimensional datasets are those with a single 'indicator' or 'series code' dimension.{{/footnote}} to multi-dimensional; and
22 -* Transforming internal datasets with a complex structure to a simpler structure with fewer dimensions suitable for dissemination.
21 +* Transforming unidimensional [[datasets>>doc:xwiki:Glossary.Data set.WebHome]]{{footnote}}Unidimensional datasets are those with a single 'indicator' or 'series code' dimension.{{/footnote}} to multi-dimensional; and
22 +* Transforming internal [[datasets>>doc:xwiki:Glossary.Data set.WebHome]] with a complex structure to a simpler structure with fewer [[dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] suitable for dissemination.
23 23  
24 24  == 13.2 1-1 structure maps ==
25 25  
26 -1-1 (pronounced 'one to one') mappings support the simple use case where the value of a Component in the source structure is translated to a different value in the target, usually where different classification schemes are used for the same Concept.
26 +1-1 (pronounced 'one to one') mappings support the simple use case where the value of a [[Component>>doc:xwiki:Glossary.Component.WebHome]] in the source structure is translated to a different value in the target, usually where different classification schemes are used for the same Concept.
27 27  
28 -In the example below, ISO 2-character country codes are mapped to their ISO 3character equivalent.
28 +In the example below, ISO 2-character country [[codes>>doc:xwiki:Glossary.Code.WebHome]] are (% style="color:#2ecc71" %)mapped(%%) to their ISO 3character equivalent.
29 29  
30 30  (% style="width:666.294px" %)
31 31  |(% style="width:217px" %)**Country**|(% style="width:251px" %)**Alpha-2 code**|(% style="width:195px" %)**Alpha-3 code**
... ... @@ -36,7 +36,7 @@
36 36  |(% style="width:217px" %)Andorra|(% style="width:251px" %)AD|(% style="width:195px" %)AND
37 37  |(% style="width:217px" %)etc…|(% style="width:251px" %) |(% style="width:195px" %)
38 38  
39 -Different source values can also map to the same target value, for example when deriving regions from country codes.
39 +Different source values can also (% style="color:#2ecc71" %)map(%%) to the same target value, for example when deriving regions from country [[codes>>doc:xwiki:Glossary.Code.WebHome]].
40 40  
41 41  (% style="width:674.294px" %)
42 42  |(% style="width:284px" %)**Source Component:
... ... @@ -50,7 +50,7 @@
50 50  
51 51  == 13.3 N-n structure maps ==
52 52  
53 -N-n (pronounced 'N to N') mappings describe rules where a specified combination of values in multiple source Components map to specified values in one or more target Components. For example, when mapping a partial Series Key from a highly multidimensional cube (like Balance of Payments) to a single 'Indicator' Dimension in a target Data Structure.
53 +N-n (pronounced 'N to N') mappings describe rules where a specified combination of values in multiple source [[Components>>doc:xwiki:Glossary.Component.WebHome]] (% style="color:#2ecc71" %)map(%%) to specified values in one or more target [[Components>>doc:xwiki:Glossary.Component.WebHome]]. For example, when mapping a partial [[Series Key>>doc:xwiki:Glossary.Series key.WebHome]] from a highly multidimensional cube (like Balance of Payments) to a single 'Indicator' [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] in a target Data Structure.
54 54  
55 55  Example:
56 56  
... ... @@ -71,7 +71,7 @@
71 71  INDICATOR=MON_SAX_12
72 72  )))
73 73  
74 -N-n rules can also set values for multiple source Components.
74 +N-n rules can also set values for multiple source [[Components>>doc:xwiki:Glossary.Component.WebHome]].
75 75  
76 76  (% style="width:757.294px" %)
77 77  |(% style="width:62px" %)**Rule**|(% style="width:378px" %)**Source**|(% style="width:312px" %)**Target**
... ... @@ -95,9 +95,9 @@
95 95  
96 96  == 13.4 Ambiguous mapping rules ==
97 97  
98 -A structure map is ambiguous if the rules result in a dataset containing multiple series with the same Series Key.
98 +A structure (% style="color:#2ecc71" %)map(%%) is ambiguous if the rules result in a [[dataset>>doc:xwiki:Glossary.Data set.WebHome]] containing multiple series with the same Series Key.
99 99  
100 -A simple example mapping a source dataset with a single dimension to one with multiple dimensions is shown below:
100 +A simple example (% style="color:#2ecc71" %)mapping(%%) a source [[dataset>>doc:xwiki:Glossary.Data set.WebHome]] with a single [[dimension>>doc:xwiki:Glossary.Dimension.WebHome]] to one with multiple [[dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] is shown below:
101 101  
102 102  (% style="width:819.294px" %)
103 103  |(% style="width:240px" %)**Source**|(% style="width:246px" %)**Target**|(% style="width:329px" %)**Output Series Key**
... ... @@ -120,19 +120,19 @@
120 120  COMP_ORG=34
121 121  )))|(% style="width:329px" %)XM:A:N
122 122  
123 -The above behaviour can be okay if the series XMAN_Z_21 contains observations for different periods of time then the series XMAN_Z_34. If however both series contain observations for the same point in time, the output for this mapping will be two observations with the same series key, for the same period in time.
123 +The above behaviour can be okay if the series XMAN_Z_21 contains observations for different periods of time then the series XMAN_Z_34. If however both series contain observations for the same point in time, the output for this mapping will be two observations with the same [[series key>>doc:xwiki:Glossary.Series key.WebHome]], for the same period in time.
124 124  
125 125  == 13.5 Representation maps ==
126 126  
127 -Representation Maps replace the SDMX 2.1 Codelist Maps and are used describe explicit mappings between source and target Component values.
127 +[[Representation>>doc:xwiki:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Maps(%%) replace the [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] 2.1 Codelist (% style="color:#2ecc71" %)Maps(%%) and are used describe explicit mappings between source and target [[Component>>doc:xwiki:Glossary.Component.WebHome]] values.
128 128  
129 -The source and target of a Representation Map can reference any of the following:
129 +The source and target of a [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map(%%) can reference any of the following:
130 130  
131 131  1. Codelist
132 132  1. Free Text (restricted by type, e.g String, Integer, Boolean)
133 133  1. Valuelist
134 134  
135 -A Representation Map mapping ISO 2-character to ISO 3-character Codelists would take the following form:
135 +A [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map(%%) mapping ISO 2-character to ISO 3-character Codelists would take the following form:
136 136  
137 137  (% style="width:763.294px" %)
138 138  |(% style="width:252px" %)**CL_ISO_ALPHA2**|(% style="width:508px" %)**CL_ISO_ALPHA3**
... ... @@ -143,7 +143,7 @@
143 143  |(% style="width:252px" %)AD|(% style="width:508px" %)AND
144 144  |(% style="width:252px" %)etc…|(% style="width:508px" %)
145 145  
146 -A Representation Map mapping free text country names to an ISO 2-character Codelist could be similarly described:
146 +A [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map(%%) mapping free text country names to an ISO 2-character Codelist could be similarly described:
147 147  
148 148  (% style="width:770.294px" %)
149 149  |(% style="width:247px" %)**Text**|(% style="width:520px" %)**CL_ISO_ALPHA2**
... ... @@ -155,9 +155,9 @@
155 155  |(% style="width:247px" %)"Eire"|(% style="width:520px" %)IE
156 156  |(% style="width:247px" %)etc…|(% style="width:520px" %)
157 157  
158 -Valuelists, introduced in SDMX 3.0, are equivalent to Codelists but allow the maintenance of non-SDMX identifiers. Importantly, their IDs do not need to conform to IDType, but as a consequence are not Identifiable.
158 +Valuelists, introduced in [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] 3.0, are equivalent to Codelists but allow the maintenance of non-[[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] identifiers. Importantly, their IDs do not need to conform to IDType, but as a consequence are not Identifiable.
159 159  
160 -When used in Representation Maps, Valuelists allow Non-SDMX identifiers containing characters like £, $, % to be mapped to Code IDs, or Codes mapped to non-SDMX identifiers.
160 +When used in [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Maps(%%), Valuelists allow Non-[[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] identifiers containing characters like £, $, % to be (% style="color:#2ecc71" %)mapped(%%) to [[Code>>doc:xwiki:Glossary.Code.WebHome]] IDs, or [[Codes>>doc:xwiki:Glossary.Code.WebHome]] (% style="color:#2ecc71" %)mapped(%%) to non-[[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] identifiers.
161 161  
162 162  In common with Codelists, each item in a Valuelist has a multilingual name giving it a human-readable label and an optional description. For example:
163 163  
... ... @@ -167,27 +167,27 @@
167 167  |(% style="width:126px" %)%|(% style="width:153px" %)En|(% style="width:498px" %)Percentage
168 168  |(% style="width:126px" %) |(% style="width:153px" %)fr|(% style="width:498px" %)Pourcentage
169 169  
170 -Other characteristics of Representation Maps:
170 +Other characteristics of [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Maps(%%):
171 171  
172 -* Support the mapping of multiple source Component values to multiple Target Component values as described in section 13.3 on n-to-n mappings; this covers also the case of mapping an Attribute with an array representation to map combinations of values to a single target value;
173 -* Allow source or target mappings for an Item to be optional allowing rules such as 'A maps to nothing' or 'nothing maps to A'; and
174 -* Support for mapping rules where regular expressions or substrings are used to match source Component values. Refer to section 13.6 for more on this topic.
172 +* Support the (% style="color:#2ecc71" %)mapping(%%) of multiple source [[Component>>doc:xwiki:Glossary.Component.WebHome]] values to multiple Target [[Component>>doc:xwiki:Glossary.Component.WebHome]] values as described in section 13.3 on n-to-n mappings; this covers also the case of (% style="color:#2ecc71" %)mapping(%%) an [[Attribute>>doc:xwiki:Glossary.Attribute.WebHome]] with an array [[representation>>doc:xwiki:Glossary.Representation.WebHome]] to (% style="color:#2ecc71" %)map(%%) combinations of values to a single target value;
173 +* Allow source or target mappings for an Item to be optional allowing rules such as 'A (% style="color:#2ecc71" %)maps(%%) to nothing' or 'nothing (% style="color:#2ecc71" %)maps(%%) to A'; and
174 +* Support for (% style="color:#2ecc71" %)mapping(%%) rules where regular expressions or substrings are used to match source [[Component>>doc:xwiki:Glossary.Component.WebHome]] values. Refer to section 13.6 for more on this topic.
175 175  
176 176  == 13.6 Regular expression and substring rules ==
177 177  
178 -It is common for classifications to contain meanings within the identifier, for example the code Id 'XULADS' may refer to a particular seasonality because it starts with the letters XU.
178 +It is common for classifications to contain meanings within the identifier, for example the [[code>>doc:xwiki:Glossary.Code.WebHome]] Id 'XULADS' may refer to a particular seasonality because it starts with the letters XU.
179 179  
180 -With SDMX 2.1 each code that starts with XU had to be individually mapped to the same seasonality, and additional mappings added when new Codes were added to the Codelists. This led to many hundreds or thousands of mappings which can be more efficiently summarised in a single conceptual rule:
180 +With [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] 2.1 each [[code>>doc:xwiki:Glossary.Code.WebHome]] that starts with XU had to be individually (% style="color:#2ecc71" %)mapped(%%) to the same seasonality, and additional mappings added when new [[Codes>>doc:xwiki:Glossary.Code.WebHome]] were added to the Codelists. This led to many hundreds or thousands of mappings which can be more efficiently summarised in a single conceptual rule:
181 181  
182 -//If starts with 'XU' map to 'Y'//
182 +//If starts with 'XU' (% style="color:#2ecc71" %)map(%%) to 'Y'//
183 183  
184 184  These rules are described using either regular expressions, or substrings for simpler use cases.
185 185  
186 186  === 13.6.1 Regular expressions ===
187 187  
188 -Regular expression mapping rules are defined in the Representation Map.
188 +Regular expression (% style="color:#2ecc71" %)mapping(%%) rules are defined in the [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] (% style="color:#2ecc71" %)Map(%%).
189 189  
190 -Below is an example set of regular expression rules for a particular component.
190 +Below is an example set of regular expression rules for a particular [[component>>doc:xwiki:Glossary.Component.WebHome]].
191 191  
192 192  (% style="width:708.294px" %)
193 193  |(% style="width:133px" %)**Regex**|(% style="width:377px" %)**Description**|(% style="width:194px" %)**Output**
... ... @@ -195,7 +195,7 @@
195 195  |(% style="width:133px" %)^[A-G]|(% style="width:377px" %)Rule match if the input starts with letters A to G|(% style="width:194px" %)OUT_B
196 196  |(% style="width:133px" %)A~|B|(% style="width:377px" %)Rule match if input is either 'A' or 'B'|(% style="width:194px" %)OUT_C
197 197  
198 -Like all mapping rules, the output is either a Code, a Value or free text depending on the representation of the Component in the target Data Structure Definition.
198 +Like all mapping rules, the output is either a [[Code>>doc:xwiki:Glossary.Code.WebHome]], a Value or free text depending on the [[representation>>doc:xwiki:Glossary.Representation.WebHome]] of the [[Component>>doc:xwiki:Glossary.Component.WebHome]] in the target [[Data Structure Definition>>doc:xwiki:Glossary.Data structure definition.WebHome]].
199 199  
200 200  If the regular expression contains capture groups, these can be used in the definition of the output value, by specifying \//**n** //as an output value where //**n**// is the number of the capture group starting from 1. For example
201 201  
... ... @@ -230,7 +230,7 @@
230 230  |(% style="width:191px" %)ABC_DEF_XYZ|(% style="width:154px" %)5|(% style="width:211px" %)3|(% style="width:182px" %)DEF
231 231  |(% style="width:191px" %)XULADS|(% style="width:154px" %)1|(% style="width:211px" %)2|(% style="width:182px" %)XU
232 232  
233 -Sub-strings can therefore be used for the conceptual rule //If starts with 'XU' map to Y// as shown in the following example:
233 +Sub-strings can therefore be used for the conceptual rule //If starts with 'XU' (% style="color:#2ecc71" %)map(%%) to Y// as shown in the following example:
234 234  
235 235  (% style="width:740.294px" %)
236 236  |(% style="width:194px" %)**Start**|(% style="width:151px" %)**Length**|(% style="width:208px" %)**Source**|(% style="width:183px" %)**Target**
... ... @@ -238,13 +238,13 @@
238 238  
239 239  == 13.7 Mapping non-SDMX time formats to SDMX formats ==
240 240  
241 -Structure mapping allows non-SDMX compliant time values in source datasets to be mapped to an SDMX compliant time format.
241 +Structure mapping allows non-[[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] compliant time values in source [[datasets>>doc:xwiki:Glossary.Data set.WebHome]] to be (% style="color:#2ecc71" %)mapped(%%) to an [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] compliant time format.
242 242  
243 243  Two types of time input are defined:
244 244  
245 245  a. **Pattern based dates** – a string which can be described using a notation like dd/mm/yyyy or is represented as the number of periods since a point in time, for example: 2010M001 (first month in 2010), or 2014D123 (123^^rd^^ day in 2014); and b. **Numerical based datetime** – a number specifying the elapsed periods since a fixed point in time, for example Unix Time is measured by the number of milliseconds since 1970.
246 246  
247 -The output of a time-based mapping is derived from the output Frequency, which is either explicitly stated in the mapping or defined as the value output by a specific Dimension or Attribute in the output mapping. If the output frequency is unknown or if the SDMX format is not desired, then additional rules can be provided to specify the output date format for the given frequency Id. The default rules are:
247 +The output of a time-based mapping is derived from the output Frequency, which is either explicitly stated in the mapping or defined as the value output by a specific [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] or [[Attribute>>doc:xwiki:Glossary.Attribute.WebHome]] in the output mapping. If the output frequency is unknown or if the [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] format is not desired, then additional rules can be provided to specify the output date format for the given frequency Id. The default rules are:
248 248  
249 249  (% style="width:771.294px" %)
250 250  |(% style="width:187px" %)**Frequency**|(% style="width:159px" %)**Format**|(% style="width:422px" %)**Example**
... ... @@ -261,12 +261,12 @@
261 261  
262 262  There are two important points to note:
263 263  
264 -1. The output frequency determines the output date format, but the default output can be redefined using a Frequency Format mapping to force explicit rules on how the output time period is formatted.
265 -1. To support the use case of changing frequency the structure map can optionally provide a start of year attribute, which defines the year start date in MM-DD format. For example: YearStart=04-01.
264 +1. The output frequency determines the output date format, but the default output can be redefined using a Frequency Format mapping to force explicit rules on how the output [[time period>>doc:xwiki:Glossary.Time period.WebHome]] is formatted.
265 +1. To support the use case of changing frequency the structure (% style="color:#2ecc71" %)map(%%) can optionally provide a start of year [[attribute>>doc:xwiki:Glossary.Attribute.WebHome]], which defines the year start date in MM-DD format. For example: YearStart=04-01.
266 266  
267 267  === 13.7.1 Pattern based dates ===
268 268  
269 -Date and time formats are specified by date and time pattern strings based on Java's Simple Date Format. Within date and time pattern strings, unquoted letters from 'A' to 'Z' and from 'a' to 'z' are interpreted as pattern letters representing the components of a date or time string. Text can be quoted using single quotes (') to avoid interpretation. "''" represents a single quote. All other characters are not interpreted; they're simply copied into the output string during formatting or matched against the input string during parsing.
269 +Date and [[time formats>>doc:xwiki:Glossary.Time format.WebHome]] are specified by date and time pattern strings based on Java's Simple Date Format. Within date and time pattern strings, unquoted letters from 'A' to 'Z' and from 'a' to 'z' are interpreted as pattern letters representing the [[components>>doc:xwiki:Glossary.Component.WebHome]] of a date or time string. Text can be quoted using single quotes (') to avoid interpretation. "''" represents a single quote. All other characters are not interpreted; they're simply copied into the output string during formatting or matched against the input string during parsing.
270 270  
271 271  Due to the fact that dates may differ per locale, an optional property, defining the locale of the pattern, is provided. This would assist processing of source dates, according to the given locale{{footnote}}Unidimensional datasets are those with a single 'indicator' or 'series code' dimension.{{/footnote}}. An indicative list of examples is presented in the following table:
272 272  
... ... @@ -336,15 +336,17 @@
336 336  
337 337  [[image:SDMX 3-0-0 SECTION 6 FINAL-1.0_en_295af259.jpg||height="265" width="477"]]
338 338  
339 -==== Figure 24 showing the component map mapping the SOURCE_DATE Dimension to the TIME_PERIOD dimension with the additional information on the component map to describe the time format ====
339 +(% class="wikigeneratedid" id="HFigure24showingthecomponentmapmappingtheSOURCE_DATEDimensiontotheTIME_PERIODdimensionwiththeadditionalinformationonthecomponentmaptodescribethetimeformat" %)
340 +**Figure 24 showing the component map mapping the SOURCE_DATE Dimension to the TIME_PERIOD dimension with the additional information on the component map to describe the time format**
340 340  
341 341  [[image:SDMX 3-0-0 SECTION 6 FINAL-1.0_en_a3215c79.jpg||height="265" width="480"]]
342 342  
343 -==== Figure 25 showing an input date format, whose output frequency is derived from the output value of the FREQ Dimension ====
344 +(% class="wikigeneratedid" id="HFigure25showinganinputdateformat2CwhoseoutputfrequencyisderivedfromtheoutputvalueoftheFREQDimension" %)
345 +**Figure 25 showing an input date format, whose output frequency is derived from the output value of the FREQ Dimension**
344 344  
345 345  === 13.7.2 Numerical based datetime ===
346 346  
347 -Where the source datetime input is purely numerical, the mapping rules are defined by the **Base** as a valid SDMX Time Period, and the **Period** which must take one of the following enumerated values:
349 +Where the source datetime input is purely numerical, the mapping rules are defined by the **Base** as a valid [[SDMX>>doc:xwiki:Glossary.Statistical data and metadata exchange.WebHome]] [[Time Period>>doc:xwiki:Glossary.Time period.WebHome]], and the **Period** which must take one of the following enumerated values:
348 348  
349 349  * day
350 350  * second
... ... @@ -375,13 +375,13 @@
375 375  
376 376  === 13.7.3 Mapping more complex time inputs ===
377 377  
378 -VTL should be used for more complex time inputs that cannot be interpreted using the pattern based on numerical methods.
380 +[[VTL>>doc:xwiki:Glossary.Validation and transformation language.WebHome]] should be used for more complex time inputs that cannot be interpreted using the pattern based on numerical methods.
379 379  
380 380  == 13.8 Using TIME_PERIOD in mapping rules ==
381 381  
382 -The source TIME_PERIOD Dimension can be used in conjunction with other input Dimensions to create discrete mapping rules where the output is conditional on the time period value.
384 +The source TIME_PERIOD [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] can be used in conjunction with other input [[Dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] to create discrete mapping rules where the output is conditional on the [[time period>>doc:xwiki:Glossary.Time period.WebHome]] value.
383 383  
384 -The main use case is setting the value of Observation Attributes in the target dataset.
386 +The main use case is setting the value of Observation [[Attributes>>doc:xwiki:Glossary.Attribute.WebHome]] in the target [[dataset>>doc:xwiki:Glossary.Data set.WebHome]].
385 385  
386 386  (% style="width:786.294px" %)
387 387  |(% style="width:92px" %)**Rule**|(% style="width:377px" %)**Source**|(% style="width:315px" %)**Target**
... ... @@ -414,7 +414,7 @@
414 414  OBS_CONF=**C**
415 415  )))
416 416  
417 -In the example above, OBS_CONF is an Observation Attribute.
419 +In the example above, OBS_CONF is an Observation [[Attribute>>doc:xwiki:Glossary.Attribute.WebHome]].
418 418  
419 419  == 13.9 Time span mapping rules using validity periods ==
420 420  
... ... @@ -453,27 +453,27 @@
453 453  
454 454  [[image:1747377208446-496.png]]
455 455  
456 -The bold Dimensions map from source to target verbatim. The mapping simply specifies:
458 +The bold [[Dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] (% style="color:#2ecc71" %)map(%%) from source to target verbatim. The mapping simply specifies:
457 457  
458 458  FREQ => FREQ
459 459  REF_AREA=> REF_AREA
460 460  COUNTERPART_AREA=> COUNTERPART _AREA
461 461  
462 -No Representation Mapping is required. The source value simply copies across unmodified.
464 +No [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] Mapping is required. The source value simply copies across unmodified.
463 463  
464 -The remaining Dimensions all map to the Indicator Dimension. This is an example of many Dimensions mapping to one Dimension. In this case a Representation Mapping is required, and the mapping first describes the input 'partial key' and how this maps to the target indicator:
466 +The remaining [[Dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] all (% style="color:#2ecc71" %)map(%%) to the Indicator [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]]. This is an example of many [[Dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] mapping to one [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]]. In this case a [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] Mapping is required, and the mapping first describes the input 'partial key' and how this (% style="color:#2ecc71" %)maps(%%) to the target indicator:
465 465  
466 466  N:S1:S1:B:B5G => IND_ABC
467 467  
468 -Where the key sequence is based on the order specified in the mapping (i.e ADJUSTMENT, REF_SECTOR, etc will result in the first value N being taken from ADJUSTMENT as this was the first item in the source Dimension list.
470 +Where the key sequence is based on the order specified in the mapping (i.e [[ADJUSTMENT>>doc:xwiki:Glossary.Adjustment.WebHome]], REF_SECTOR, etc will result in the first value N being taken from [[ADJUSTMENT>>doc:xwiki:Glossary.Adjustment.WebHome]] as this was the first item in the source [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] list.
469 469  
470 -**Note**: The key order is NOT based on the Dimension order of the DSD, as the mapping needs to be resilient to the DSD changing.
472 +**Note**: The key order is NOT based on the [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] order of the [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]], as the mapping needs to be resilient to the [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]] changing.
471 471  
472 472  === 13.10.2 Mapping other data types to Code Id ===
473 473  
474 -In the case where the incoming data type is not a string and not a code identifier i.e. the source Dimension is of type Integer and the target is Codelist. This is supported by the RepresentationMap. The RepresentationMap source can reference a Codelist, Valuelist, or be free text, the free text can include regular expressions.
476 +In the case where the incoming data type is not a string and not a [[code>>doc:xwiki:Glossary.Code.WebHome]] identifier i.e. the source [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] is of type Integer and the target is Codelist. This is supported by the RepresentationMap. The RepresentationMap source can reference a Codelist, Valuelist, or be free text, the free text can include regular expressions.
475 475  
476 -The following representation mapping can be used to explicitly map each age to an output code.
478 +The following [[representation>>doc:xwiki:Glossary.Representation.WebHome]] mapping can be used to explicitly (% style="color:#2ecc71" %)map(%%) each [[age>>doc:xwiki:Glossary.Age.WebHome]] to an output [[code>>doc:xwiki:Glossary.Code.WebHome]].
477 477  
478 478  (((
479 479  (% style="width:669.294px" %)
... ... @@ -498,7 +498,7 @@
498 498  (% style="color:inherit; font-family:inherit; font-size:max(21px, min(23px, 17.4444px + 0.462963vw))" %)13.10.3 Observation Attributes for Time Period
499 499  )))
500 500  
501 -This use case is where a specific observation for a specific time period has an attribute 3468 value.
503 +This use case is where a specific observation for a specific [[time period>>doc:xwiki:Glossary.Time period.WebHome]] has an [[attribute>>doc:xwiki:Glossary.Attribute.WebHome]] value.
502 502  
503 503  (((
504 504  (% style="width:689.294px" %)
... ... @@ -508,7 +508,7 @@
508 508  |(% style="width:220px" %)XULADS|(% style="width:223px" %)2010|(% style="width:243px" %)C
509 509  )))
510 510  
511 -Or using a validity period on the Representation Mapping:
513 +Or using a validity period on the [[Representation>>doc:xwiki:Glossary.Representation.WebHome]] Mapping:
512 512  
513 513  (% style="width:693.294px" %)
514 514  |(% style="width:221px" %)**Input INDICATOR**|(% style="width:222px" %)**Valid From/ Valid To**|(% style="width:246px" %)**Output OBS_CONF**
... ... @@ -516,9 +516,9 @@
516 516  
517 517  === 13.10.4 Time mapping ===
518 518  
519 -This use case is to create a time period from an input that does not respect SDMXTime Formats.
521 +This use case is to create a [[time period>>doc:xwiki:Glossary.Time period.WebHome]] from an input that does not respect SDMXTime Formats.
520 520  
521 -The Component Mapping from SYS_TIME to TIME_PERIOD specifies itself as a time mapping with the following details:
523 +The [[Component>>doc:xwiki:Glossary.Component.WebHome]] Mapping from SYS_TIME to TIME_PERIOD specifies itself as a time mapping with the following details:
522 522  
523 523  (((
524 524  (% style="width:763.294px" %)
... ... @@ -526,7 +526,7 @@
526 526  |(% style="width:163px" %)18/07/1981|(% style="width:219px" %)dd/MM/yyyy|(% style="width:198px" %)A|(% style="width:180px" %)1981
527 527  )))
528 528  
529 -When the target frequency is based on another target Dimension value, in this example the value of the FREQ Dimension in the target DSD.
531 +When the target frequency is based on another target [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] value, in this example the value of the FREQ [[Dimension>>doc:xwiki:Glossary.Dimension.WebHome]] in the target [[DSD>>doc:xwiki:Glossary.Data structure definition.WebHome]].
530 530  
531 531  (((
532 532  (% style="width:734.294px" %)
... ... @@ -546,7 +546,7 @@
546 546  |(% style="width:165px" %)**Source Value**|(% style="width:133px" %)**Source Mapping**|(% style="width:191px" %)**Target Dimension**|(% style="width:264px" %)**Frequency**|(% style="width:167px" %)**Output**
547 547  |(% style="width:165px" %)1981|(% style="width:133px" %)yyyy|(% style="width:191px" %)D – End of Period|(% style="width:264px" %) |(% style="width:167px" %)1981-12-31
548 548  
549 -When the start of year is April 1^^st^^ the Structure Map has YearStart=04-01:
551 +When the start of year is April 1^^st^^ the Structure (% style="color:#2ecc71" %)Map(%%) has YearStart=04-01:
550 550  
551 551  (% style="width:892.294px" %)
552 552  |(% style="width:165px" %)**Source Value**|(% style="width:133px" %)**Source Mapping**|(% style="width:191px" %)**Target Dimension**|(% style="width:264px" %)**Frequency**|(% style="width:167px" %)**Output**