Skip to Content

Changes for page 10 Constraints

Last modified by Helena K. on 2026/06/10 09:45
From version 8.6
edited by Helena K.
on 2026/06/10 09:44
Change comment: There is no comment for this version
To version 8.3
edited by Helena K.
on 2026/06/10 09:33
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -107,7 +107,7 @@
107 107  
108 108  * Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]
109 109  
110 -For a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] based on a [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] can reference one or more of:
110 +For a (% style="color:#e74c3c" %)Constraint(%%) based on a [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] the (% style="color:#e74c3c" %)Constraint(%%) can reference one or more of:
111 111  
112 112  * [[Data Structure Definition>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]
113 113  * [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]
... ... @@ -114,7 +114,7 @@
114 114  * [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]]
115 115  * [[Data Provider>>doc:sdmx:Glossary 2\.1.Data provider.WebHome]]
116 116  
117 -For a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] based on an [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] can reference one or more of:
117 +For a (% style="color:#e74c3c" %)Constraint(%%) based on an [[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] the (% style="color:#e74c3c" %)Constraint(%%) can reference one or more of:
118 118  
119 119  * [[Metadata Structure Definition>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]]
120 120  * [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]]
... ... @@ -122,107 +122,107 @@
122 122  * Metadata Provider
123 123  * [[Metadata Set>>doc:sdmx:Glossary 2\.1.Metadata set.WebHome]]
124 124  
125 -Furthermore, there can be more than one [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] specified for a specific object e.g., more than one [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] for a specific [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
125 +Furthermore, there can be more than one (% style="color:#e74c3c" %)Constraint(%%) specified for a specific object e.g., more than one (% style="color:#e74c3c" %)Constraint(%%) for a specific [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
126 126  
127 -In view of the flexibility of [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] attachment, clear rules on their usage are required. These are elaborated below.
127 +In view of the flexibility of (% style="color:#e74c3c" %)constraints(%%) attachment, clear rules on their usage are required. These are elaborated below.
128 128  
129 129  === 10.4.4 Multiple Constraints ===
130 130  
131 -There can be many [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] for any Constrainable [[Artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] (e.g., [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]), subject to the following restrictions:
131 +There can be many (% style="color:#e74c3c" %)Constraints(%%) for any Constrainable [[Artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] (e.g., [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]), subject to the following restrictions:
132 132  
133 133  ==== 10.4.4.1 Cube Region ====
134 134  
135 -A [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] can contain multiple [[Member Selections>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] (e.g., [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]]).
135 +A (% style="color:#e74c3c" %)Constraint(%%) can contain multiple [[Member Selections>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] (e.g., [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]]).
136 136  
137 137  * A specific [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] (e.g., [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] FREQ) can only be contained in one Cube Region for any one attached object (e.g., a specific [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] or specific [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]).
138 138  * [[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]] values within a [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] may define a validity period. Otherwise, the value is valid for the whole validity of the Cube Region.
139 -* For partial reference resolution purposes (as per the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] REST API), the latest non-draft [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] must be considered.
139 +* For partial reference resolution purposes (as per the [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] REST API), the latest non-draft (% style="color:#e74c3c" %)Constraint(%%) must be considered.
140 140  * A [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] may include wildcarding of values (using character ‘%’ to represent zero or more occurrences of any character), as well as cascading through hierarchic structures (e.g., parents in [[Codelist>>doc:sdmx:Glossary 2\.1.Code list.WebHome]]), or localised values (e.g., text for English only). Lack of locale means any [[language>>doc:sdmx:Glossary 2\.1.Language.WebHome]] may match. Cascading values are mutual exclusive to localised values, as the former refer to coded values, while the latter refer to uncoded values.
141 141  * Any values included in a [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] for [[Components>>doc:sdmx:Glossary 2\.1.Component.WebHome]] with an array data type (i.e., [[Measures>>doc:sdmx:Glossary 2\.1.Measure.WebHome]], [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] or Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]), will be applied as single values and will not be assessed combined with other values to match all possible array values. For example, including the [[Code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] ‘A’ for an [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] will allow any instance of the [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] that includes ‘A’, like [‘A’, ‘B’] or [‘A’, ‘C’, ‘D’]. Similarly, if [[Code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] ‘A’ was excluded, all those arrays of values would also be excluded.
142 142  
143 143  ==== 10.4.4.2 Key Set ====
144 144  
145 -Key Sets will be processed in the order they appear in the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] and wildcards can be used (e.g., any key position not reference explicitly is deemed to be "all values").
145 +Key Sets will be processed in the order they appear in the (% style="color:#e74c3c" %)Constraint(%%) and wildcards can be used (e.g., any key position not reference explicitly is deemed to be "all values").
146 146  
147 147  As the Key Sets can be "included" or "excluded" it is recommended that Key Sets with wildcards are declared before KeySets with specific [[series keys>>doc:sdmx:Glossary 2\.1.Series key.WebHome]]. This will minimize the risk that keys are inadvertently included or excluded.
148 148  
149 -In addition, [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]], [[Measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] and Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] may accompany KeySets, in order to specify the allowed values per Key. Those are expressed following the rules for Cube Regions, as explained above.
149 +In addition, [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]], [[Measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] and Metadata [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] (% style="color:#e74c3c" %)constraints(%%) may accompany KeySets, in order to specify the allowed values per Key. Those are expressed following the rules for Cube Regions, as explained above.
150 150  
151 151  Finally, a validity period may be specified per Key.
152 152  
153 153  === 10.4.4 Versioning ===
154 154  
155 -When Data and Metadata [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] are versioned, the latest [[version>>doc:sdmx:Glossary 2\.1.Version.WebHome]] of the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] is used to generate the reporting restriction rules; all previous [[versions>>doc:sdmx:Glossary 2\.1.Version.WebHome]] are for historical information only.
155 +When Data and Metadata (% style="color:#e74c3c" %)Constraints(%%) are versioned, the latest (% style="color:#e74c3c" %)version(%%) of the (% style="color:#e74c3c" %)Constraint(%%) is used to generate the reporting restriction rules; all previous (% style="color:#e74c3c" %)versions(%%) are for historical information only.
156 156  
157 -If restrictions are applicable to certain periods in time, the validFrom and validTo properties can be set on the specific values. This allows [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] to evolve over time, increasing their [[version>>doc:sdmx:Glossary 2\.1.Version.WebHome]] number as they do so, whilst being able to maintain a complete set of reporting restrictions for current and past [[datasets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]].
157 +If restrictions are applicable to certain periods in time, the validFrom and validTo properties can be set on the specific values. This allows (% style="color:#e74c3c" %)Constraints(%%) to evolve over time, increasing their (% style="color:#e74c3c" %)version(%%) number as they do so, whilst being able to maintain a complete set of reporting restrictions for current and past [[datasets>>doc:sdmx:Glossary 2\.1.Data set.WebHome]].
158 158  
159 159  Example:
160 160  
161 -Data Constraint 1.0.0
161 +Data (% style="color:#e74c3c" %)Constraint(%%) 1.0.0
162 162  
163 163  (% style="width:573.294px" %)
164 -|(% style="width:108px" %)Component|(% style="width:127px" %)Valid Value|(% style="width:150px" %)Valid from|(% style="width:185px" %)Valid to
164 +|(% style="width:108px" %)[[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]]|(% style="width:127px" %)Valid Value|(% style="width:150px" %)Valid from|(% style="width:185px" %)Valid to
165 165  |(% rowspan="3" style="width:108px" %)COUNTRY|(% style="width:127px" %)UK|(% style="width:150px" %) |(% style="width:185px" %)
166 166  |(% style="width:127px" %)FR|(% style="width:150px" %) |(% style="width:185px" %)
167 167  |(% style="width:127px" %)DE|(% style="width:150px" %) |(% style="width:185px" %)
168 168  
169 -Data Constraint 1.1.0
169 +Data (% style="color:#e74c3c" %)Constraint(%%) 1.1.0
170 170  
171 171  (% style="width:576.294px" %)
172 -|(% style="width:110px" %)Component|(% style="width:129px" %)Valid Value|(% style="width:145px" %)Valid from|(% style="width:189px" %)Valid to
172 +|(% style="width:110px" %)[[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]]|(% style="width:129px" %)Valid Value|(% style="width:145px" %)Valid from|(% style="width:189px" %)Valid to
173 173  |(% rowspan="3" style="width:110px" %)COUNTRY|(% style="width:129px" %)UK|(% style="width:145px" %) |(% style="width:189px" %)
174 174  |(% style="width:129px" %)FR|(% style="width:145px" %) |(% style="width:189px" %)2012
175 175  |(% style="width:129px" %)DE|(% style="width:145px" %) |(% style="width:189px" %)
176 176  
177 -When both [[versions>>doc:sdmx:Glossary 2\.1.Version.WebHome]] of the Data [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] are in a system, an [[observation value>>doc:sdmx:Glossary 2\.1.Observation value.WebHome]] reported against COUNTRY FR for [[time period>>doc:sdmx:Glossary 2\.1.Time period.WebHome]] 2013 would be deemed invalid as the 1.1.0 rule would be applied.
177 +When both (% style="color:#e74c3c" %)versions(%%) of the Data (% style="color:#e74c3c" %)Constraint(%%) are in a system, an [[observation value>>doc:sdmx:Glossary 2\.1.Observation value.WebHome]] reported against COUNTRY FR for [[time period>>doc:sdmx:Glossary 2\.1.Time period.WebHome]] 2013 would be deemed invalid as the 1.1.0 rule would be applied.
178 178  
179 179  === 10.4.6 Inheritance ===
180 180  
181 181  ==== 10.4.6.1 Attachment levels of a Constraint ====
182 182  
183 -There are three [[levels>>doc:sdmx:Glossary 2\.1.Level.WebHome]] of [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] attachment for which these inheritance rules apply:
183 +There are three (% style="color:#e74c3c" %)levels(%%) of (% style="color:#e74c3c" %)constraint(%%) attachment for which these inheritance rules apply:
184 184  
185 -* [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]/[[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] – top [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]]
186 -** [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]/[[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] – second [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]]
187 -*** [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] – third [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]]
185 +* [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]]/[[MSD>>doc:sdmx:Glossary 2\.1.Metadata structure definition.WebHome]] – top (% style="color:#e74c3c" %)level
186 +** [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]/[[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] – second (% style="color:#e74c3c" %)level
187 +*** [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] – third (% style="color:#e74c3c" %)level
188 188  
189 -It is not necessary for a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] to be attached to a higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]]. e.g., it is valid to have a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] for a [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] where there are no [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] attached the relevant [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] or [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
189 +It is not necessary for a (% style="color:#e74c3c" %)Constraint(%%) to be attached to a higher (% style="color:#e74c3c" %)level(%%) [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]]. e.g., it is valid to have a (% style="color:#e74c3c" %)Constraint(%%) for a [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] where there are no (% style="color:#e74c3c" %)constraints(%%) attached the relevant [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] or [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
190 190  
191 191  ==== 10.4.6.2 Cascade rules for processing Constraints ====
192 192  
193 -The processing of the [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] on either [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]/[[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] or [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] must take into account the [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] declared at higher [[levels>>doc:sdmx:Glossary 2\.1.Level.WebHome]]. The rules for the lower-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] (attached to [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]/ [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] and [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]]) are detailed below.
193 +The processing of the (% style="color:#e74c3c" %)constraints(%%) on either [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]/[[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] or [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] must take into account the (% style="color:#e74c3c" %)constraints(%%) declared at higher (% style="color:#e74c3c" %)levels(%%). The rules for the lower-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)constraints(%%) (attached to [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]/ [[Metadataflow>>doc:sdmx:Glossary 2\.1.Metadataflow.WebHome]] and [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]]) are detailed below.
194 194  
195 -Note that there can be a situation where a [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] is specified at a lower [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] before a [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] is specified at a higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]]. Therefore, it is possible that a higher-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] makes a lower-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] invalid. [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] makes no rules on how such a conflict should be handled when processing the [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] for attachment. However, the cascade rules on evaluating [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] for usage are clear – the higher-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] takes precedence in any conflicts that result in a less restrictive specification at the lower [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]].
195 +Note that there can be a situation where a (% style="color:#e74c3c" %)constraint(%%) is specified at a lower (% style="color:#e74c3c" %)level(%%) before a (% style="color:#e74c3c" %)constraint(%%) is specified at a higher (% style="color:#e74c3c" %)level(%%). Therefore, it is possible that a higher-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)constraint(%%) makes a lower-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)constraint(%%) invalid. [[SDMX>>doc:sdmx:Glossary 2\.1.Statistical data and metadata exchange.WebHome]] makes no rules on how such a conflict should be handled when processing the (% style="color:#e74c3c" %)constraint(%%) for attachment. However, the cascade rules on evaluating (% style="color:#e74c3c" %)constraints(%%) for usage are clear – the higher-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)constraint(%%) takes precedence in any conflicts that result in a less restrictive specification at the lower (% style="color:#e74c3c" %)level(%%).
196 196  
197 197  ==== 10.4.6.3 Cube Region ====
198 198  
199 -It is not necessary to have a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] on the higher-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] (e.g., [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] referenced by the [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]), but if there is such a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] at the higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]](s) then:
199 +It is not necessary to have a (% style="color:#e74c3c" %)Constraint(%%) on the higher-(% style="color:#e74c3c" %)level(%%) [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] (e.g., [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] referenced by the [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]), but if there is such a (% style="color:#e74c3c" %)Constraint(%%) at the higher (% style="color:#e74c3c" %)level(%%)(s) then:
200 200  
201 -* The lower-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] cannot be less restrictive than the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] specified for the same [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] (e.g. [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]]) at the next higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]], which constrains that [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]]. For example, if the [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] FREQ is constrained to A, Q in a [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]], then the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] at the [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] or [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] cannot be A, Q, M or even just M – it can only further constrain A, Q.
202 -* The [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] at the lower [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] for any one [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] further constrains the content for the same [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] at the higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]](s).
203 -* Any [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]], which is not referenced in a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]], is deemed to be constrained according to the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] specified at the next higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] which [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] that [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]].
204 -* If there is a conflict when resolving the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] in terms of a lower-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] being less restrictive than a higher-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]], then the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] at the higher-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] is used.
201 +* The lower-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)Constraint(%%) cannot be less restrictive than the (% style="color:#e74c3c" %)Constraint(%%) specified for the same [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] (e.g. [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]]) at the next higher (% style="color:#e74c3c" %)level(%%), which constrains that [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]]. For example, if the [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] FREQ is constrained to A, Q in a [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]], then the (% style="color:#e74c3c" %)Constraint(%%) at the [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] or [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] cannot be A, Q, M or even just M – it can only further constrain A, Q.
202 +* The (% style="color:#e74c3c" %)Constraint(%%) at the lower (% style="color:#e74c3c" %)level(%%) for any one [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] further constrains the content for the same [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] at the higher (% style="color:#e74c3c" %)level(%%)(s).
203 +* Any [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]], which is not referenced in a (% style="color:#e74c3c" %)Constraint(%%), is deemed to be constrained according to the (% style="color:#e74c3c" %)Constraint(%%) specified at the next higher (% style="color:#e74c3c" %)level(%%) which (% style="color:#e74c3c" %)constraints(%%) that [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]].
204 +* If there is a conflict when resolving the (% style="color:#e74c3c" %)Constraint(%%) in terms of a lower-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)Constraint(%%) being less restrictive than a higher-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)Constraint(%%), then the (% style="color:#e74c3c" %)Constraint(%%) at the higher-(% style="color:#e74c3c" %)level(%%) is used.
205 205  
206 -Note that it is possible for a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] at a higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] to constrain, say, four [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] in a single [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]], and a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] at a lower [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] to constrain the same four in two, three, or four [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]].
206 +Note that it is possible for a (% style="color:#e74c3c" %)Constraint(%%) at a higher (% style="color:#e74c3c" %)level(%%) to constrain, say, four [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] in a single (% style="color:#e74c3c" %)Constraint(%%), and a (% style="color:#e74c3c" %)Constraint(%%) at a lower (% style="color:#e74c3c" %)level(%%) to constrain the same four in two, three, or four (% style="color:#e74c3c" %)Constraints(%%).
207 207  
208 208  ==== 10.4.6.4 Key Set ====
209 209  
210 -It is not necessary to have a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] on the higher-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] (e.g., [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] referenced by the [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]), but if there is such a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] at the higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]](s) then:
210 +It is not necessary to have a (% style="color:#e74c3c" %)Constraint(%%) on the higher-(% style="color:#e74c3c" %)level(%%) [[artefact>>doc:sdmx:Glossary 2\.1.Artefact.WebHome]] (e.g., [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] referenced by the [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]), but if there is such a (% style="color:#e74c3c" %)Constraint(%%) at the higher (% style="color:#e74c3c" %)level(%%)(s) then:
211 211  
212 -* The lower-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] cannot be less restrictive than the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] specified at the higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]].
213 -* The [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] at the lower [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] for any one [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] further constrains the keys specified at the higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]](s).
214 -* Any [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]], which is not referenced in a [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]], is deemed to be constrained according to the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] specified at the next higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] which [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] that [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]].
215 -* If there is a conflict when resolving the keys in the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] at two [[levels>>doc:sdmx:Glossary 2\.1.Level.WebHome]], in terms of a lower-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] being less restrictive than a higher-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]], then the offending keys specified at the lower [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] are not deemed part of the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]].
212 +* The lower-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)Constraint(%%) cannot be less restrictive than the (% style="color:#e74c3c" %)Constraint(%%) specified at the higher (% style="color:#e74c3c" %)level(%%).
213 +* The (% style="color:#e74c3c" %)Constraint(%%) at the lower (% style="color:#e74c3c" %)level(%%) for any one [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]] further constrains the keys specified at the higher (% style="color:#e74c3c" %)level(%%)(s).
214 +* Any [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]], which is not referenced in a (% style="color:#e74c3c" %)Constraint(%%), is deemed to be constrained according to the (% style="color:#e74c3c" %)Constraint(%%) specified at the next higher (% style="color:#e74c3c" %)level(%%) which (% style="color:#e74c3c" %)constraints(%%) that [[Member Selection>>doc:sdmx:Glossary 2\.1.Member selection.WebHome]].
215 +* If there is a conflict when resolving the keys in the (% style="color:#e74c3c" %)Constraint(%%) at two (% style="color:#e74c3c" %)levels(%%), in terms of a lower-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)constraint(%%) being less restrictive than a higher-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)Constraint(%%), then the offending keys specified at the lower (% style="color:#e74c3c" %)level(%%) are not deemed part of the (% style="color:#e74c3c" %)Constraint(%%).
216 216  
217 -Note that a Key in a Key Set can have wildcarded [[Components>>doc:sdmx:Glossary 2\.1.Component.WebHome]]. For instance, the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] may simply constrain the [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] FREQ to "A", and all keys where the FREQ="A" are therefore valid.
217 +Note that a Key in a Key Set can have wildcarded [[Components>>doc:sdmx:Glossary 2\.1.Component.WebHome]]. For instance, the (% style="color:#e74c3c" %)Constraint(%%) may simply constrain the [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] FREQ to "A", and all keys where the FREQ="A" are therefore valid.
218 218  
219 219  The following logic explains how the inheritance mechanism works. Note that this is conceptual logic and actual systems may differ in the way this is implemented.
220 220  
221 -1. Determine all possible keys that are valid at the higher [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]].
222 -1. These keys are deemed to be inherited by the lower-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] constrained object, subject to the [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] specified at the lower [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]].
223 -1. Determine all possible keys that are possible using the [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] specified at the lower [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]].
224 -1. At the lower [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] inherit all keys that match with the higher-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]].
225 -1. If there are keys in the lower-[[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] that are not inherited then the key is invalid (i.e., it is less restrictive).
221 +1. Determine all possible keys that are valid at the higher (% style="color:#e74c3c" %)level(%%).
222 +1. These keys are deemed to be inherited by the lower-(% style="color:#e74c3c" %)level(%%) constrained object, subject to the (% style="color:#e74c3c" %)Constraints(%%) specified at the lower (% style="color:#e74c3c" %)level(%%).
223 +1. Determine all possible keys that are possible using the (% style="color:#e74c3c" %)Constraints(%%) specified at the lower (% style="color:#e74c3c" %)level(%%).
224 +1. At the lower (% style="color:#e74c3c" %)level(%%) inherit all keys that match with the higher-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)Constraint(%%).
225 +1. If there are keys in the lower-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)Constraint(%%) that are not inherited then the key is invalid (i.e., it is less restrictive).
226 226  
227 227  === 10.4.7 Constraints Examples ===
228 228  
... ... @@ -237,23 +237,24 @@
237 237  * [[AGE>>doc:sdmx:Glossary 2\.1.Age.WebHome]] – [[Age>>doc:sdmx:Glossary 2\.1.Age.WebHome]]
238 238  * CAS – Current Activity Status
239 239  
240 -In the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]], common [[code lists>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] are used and the requirement is to restrict these at various [[levels>>doc:sdmx:Glossary 2\.1.Level.WebHome]] to specify the actual [[code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] that are valid for the object to which the [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] is attached.
240 +In the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]], common [[code lists>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] are used and the requirement is to restrict these at various (% style="color:#e74c3c" %)levels(%%) to specify the actual [[code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] that are valid for the object to which the (% style="color:#e74c3c" %)Constraint(%%) is attached.
241 241  
242 242  [[image:1750065279010-260.png]]
243 243  
244 -**Figure 20: Example Scenario for Constraints **
244 +**Figure 20: Example Scenario for (% style="color:#e74c3c" %)Constraints(%%) **
245 245  
246 -[[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] are declared as follows:
246 +(% style="color:#e74c3c" %)Constraints(%%) are declared as follows:
247 247  
248 248  [[image:1750065319060-899.png]]
249 249  
250 -**Figure 21: Example Constraints**
250 +**Figure 21: Example (% style="color:#e74c3c" %)Constraints(%%)**
251 251  
252 252  Notes:
253 253  
254 +
254 254  [[AGE>>doc:sdmx:Glossary 2\.1.Age.WebHome]] is constrained for the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] and is further restricted for the [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] CENSUS_CUBE1.
255 255  
256 -* The same [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] applies to both [[Provision Agreements>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]].
257 +* The same (% style="color:#e74c3c" %)Constraint(%%) applies to both [[Provision Agreements>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]].
257 257  
258 258  The cascade rules elaborated above result as follows:
259 259  
... ... @@ -263,40 +263,40 @@
263 263  
264 264  [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] CENSUS_CUBE1
265 265  
266 -* Constrained by restricting the [[code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] for the [[AGE>>doc:sdmx:Glossary 2\.1.Age.WebHome]] [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] to [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] 002 and 003 (note that this is a more restrictive [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] than that declared for the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] which specifies all [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] except [[code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] 001).
267 +* Constrained by restricting the [[code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] for the [[AGE>>doc:sdmx:Glossary 2\.1.Age.WebHome]] [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] to [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] 002 and 003 (note that this is a more restrictive (% style="color:#e74c3c" %)constraint(%%) than that declared for the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] which specifies all [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] except [[code>>doc:sdmx:Glossary 2\.1.Code.WebHome]] 001).
267 267  ** Restricts the CAS [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] to 003 and 004.
268 268  
269 269  [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] CENSUS_CUBE2
270 270  
271 271  * Restricts the [[code list>>doc:sdmx:Glossary 2\.1.Code list.WebHome]] for the CAS [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] to [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] TOT and NAP.
272 -** Inherits the [[AGE>>doc:sdmx:Glossary 2\.1.Age.WebHome]] [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] applied at the level of the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
273 +** Inherits the [[AGE>>doc:sdmx:Glossary 2\.1.Age.WebHome]] (% style="color:#e74c3c" %)constraint(%%) applied at the (% style="color:#e74c3c" %)level(%%) of the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
273 273  
274 274  [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] CENSUS_CUBE1_IT
275 275  
276 276  * Restricts the [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] for the GEO [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] to IT and its children.
277 -** Inherits the [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] from [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] CENSUS_CUBE1 for the [[AGE>>doc:sdmx:Glossary 2\.1.Age.WebHome]] and CAS [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]].
278 +** Inherits the (% style="color:#e74c3c" %)constraints(%%) from [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] CENSUS_CUBE1 for the [[AGE>>doc:sdmx:Glossary 2\.1.Age.WebHome]] and CAS [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]].
278 278  
279 279  [[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] CENSUS_CUBE2_IT
280 280  
281 281  * Restricts the [[codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] for the GEO [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] to IT and its children.
282 -** Inherits the [[constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] from [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] CENSUS_CUBE2 for the CAS [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]].
283 -** Inherits the [[AGE>>doc:sdmx:Glossary 2\.1.Age.WebHome]] [[constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] applied at the [[level>>doc:sdmx:Glossary 2\.1.Level.WebHome]] of the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
283 +** Inherits the (% style="color:#e74c3c" %)constraints(%%) from [[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] CENSUS_CUBE2 for the CAS [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]].
284 +** Inherits the [[AGE>>doc:sdmx:Glossary 2\.1.Age.WebHome]] (% style="color:#e74c3c" %)constraint(%%) applied at the (% style="color:#e74c3c" %)level(%%) of the [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]].
284 284  
285 -The [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] are defined as follows:
286 +The (% style="color:#e74c3c" %)Constraints(%%) are defined as follows:
286 286  
287 -DSD Constraint
288 +[[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] (% style="color:#e74c3c" %)Constraint
288 288  
289 289  [[image:1750065367824-357.png]]
290 290  
291 -Dataflow Constraints
292 +[[Dataflow>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]] (% style="color:#e74c3c" %)Constraints
292 292  
293 293  [[image:1750065392163-400.png]]
294 294  
295 -Provision Agreement Constraint
296 +[[Provision Agreement>>doc:sdmx:Glossary 2\.1.Provision agreement.WebHome]] (% style="color:#e74c3c" %)Constraint
296 296  
297 297  [[image:1750065461589-995.png]]
298 298  
299 -**10.4.7.2 Combination of Constraints**
300 +**10.4.7.2 Combination of (% style="color:#e74c3c" %)Constraints(%%)**
300 300  
301 301  The possible combination of constraining terms are explained in this section, following a few examples.
302 302  
... ... @@ -317,7 +317,7 @@
317 317  
318 318  On the above, let’s assume the following use cases with their constraining requirements:
319 319  
320 -**Use Case 1: A Constraint on allowed values for some Dimensions**
321 +**Use Case 1: A (% style="color:#e74c3c" %)Constraint(%%) on allowed values for some [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]]**
321 321  
322 322  R1: Allow monthly and quarterly data
323 323  
... ... @@ -329,7 +329,7 @@
329 329  |(% style="width:131px" %)(% style="color:#3498db" %)FREQ|(% style="width:153px" %)(% style="color:#3498db" %)M, Q
330 330  |(% style="width:131px" %)(% style="color:#3498db" %)VIS_CTY|(% style="width:153px" %)(% style="color:#3498db" %)MX
331 331  
332 -**Use Case 2: A Constraint on allowed combinations for some Dimensions**
333 +**Use Case 2: A (% style="color:#e74c3c" %)Constraint(%%) on allowed combinations for some [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]]**
333 333  
334 334  R1: Allow monthly data for Germany
335 335  
... ... @@ -343,10 +343,8 @@
343 343  |(% rowspan="2" style="width:105px" %)(% style="color:#2980b9" %)Key2|(% style="width:137px" %)(% style="color:#2980b9" %)FREQ|(% style="width:143px" %)(% style="color:#2980b9" %)Q
344 344  |(% style="width:137px" %)(% style="color:#2980b9" %)VIS_CTY|(% style="width:143px" %)(% style="color:#2980b9" %)MX
345 345  
346 -**Use Case 3: A Constraint on allowed values for some Dimensions combined with allowed values for some Attributes**
347 +**Use Case 3: A (% style="color:#e74c3c" %)Constraint(%%) on allowed values for some [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] combined with allowed values for some [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]** R1: Allow monthly and quarterly data
347 347  
348 -R1: Allow monthly and quarterly data
349 -
350 350  R2: Allow Mexico for vis-à-vis country
351 351  
352 352  R3: Allow present for status
... ... @@ -358,7 +358,7 @@
358 358  |(% style="width:143px" %)(% style="color:#2980b9" %)VIS_CTY|(% style="width:139px" %)(% style="color:#2980b9" %)MX
359 359  |(% style="width:143px" %)(% style="color:#27ae60" %)OBS_STATUS|(% style="width:139px" %)(% style="color:#27ae60" %)A
360 360  
361 -**Use Case 4: A Constraint on allowed combinations for some Dimensions combined with specific Attribute values**
360 +**Use Case 4: A (% style="color:#e74c3c" %)Constraint(%%) on allowed combinations for some [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] combined with specific [[Attribute>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] values**
362 362  
363 363  R1: Allow monthly data, for Germany, with [[unit>>doc:sdmx:Glossary 2\.1.Statistical unit.WebHome]] euro
364 364  
... ... @@ -374,7 +374,7 @@
374 374  |(% style="width:153px" %)(% style="color:#2980b9" %)VIS_CTY|(% style="width:142px" %)(% style="color:#2980b9" %)MX
375 375  |(% style="width:153px" %)(% style="color:#27ae60" %)[[UNIT>>doc:sdmx:Glossary 2\.1.Statistical unit.WebHome]]|(% style="width:142px" %)(% style="color:#27ae60" %)USD
376 376  
377 -**Use Case 5: A Constraint on allowed values for some Dimensions together with some combination of Dimension values**
376 +**Use Case 5: A (% style="color:#e74c3c" %)Constraint(%%) on allowed values for some [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] together with some combination of [[Dimension>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] values**
378 378  
379 379  R1: For annually and quarterly data, for Mexico and Germany, only A status is allowed
380 380  
... ... @@ -390,11 +390,11 @@
390 390  |(% style="width:137px" %)(% style="color:#2980b9" %)VIS_CTY|(% style="width:183px" %)(% style="color:#2980b9" %)MX, DE
391 391  |(% style="width:137px" %)(% style="color:#27ae60" %)OBS_STATUS|(% style="width:183px" %)(% style="color:#27ae60" %)F
392 392  
393 -The problem with this approach is that according to the business rule for [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]], only one should be specified per [[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]]. Thus, if a software would perform some conflict resolution would end up with empty sets for FREQ and OBS_STATUS (as they do not share any values).
392 +The problem with this approach is that according to the business rule for (% style="color:#e74c3c" %)Constraints(%%), only one should be specified per [[Component>>doc:sdmx:Glossary 2\.1.Component.WebHome]]. Thus, if a software would perform some conflict resolution would end up with empty sets for FREQ and OBS_STATUS (as they do not share any values).
394 394  
395 -Nevertheless, there is a much easier approach to that; this is the cascading mechanism of [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]] (as shown in 10.4.7.1). Hence, these rules would be expressed into two [[levels>>doc:sdmx:Glossary 2\.1.Level.WebHome]] of [[Constraints>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]], e.g., [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] and [[Dataflows>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]:
394 +Nevertheless, there is a much easier approach to that; this is the cascading mechanism of (% style="color:#e74c3c" %)Constraints(%%) (as shown in 10.4.7.1). Hence, these rules would be expressed into two (% style="color:#e74c3c" %)levels(%%) of (% style="color:#e74c3c" %)Constraints(%%), e.g., [[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] and [[Dataflows>>doc:sdmx:Glossary 2\.1.Dataflow.WebHome]]:
396 396  
397 -DSD CubeRegion:
396 +[[DSD>>doc:sdmx:Glossary 2\.1.Data structure definition.WebHome]] CubeRegion:
398 398  
399 399  (% style="width:280.294px" %)
400 400  |(% style="width:156px" %)(% style="color:#2980b9" %)FREQ|(% style="width:121px" %)(% style="color:#2980b9" %)M, Q, A
... ... @@ -415,7 +415,7 @@
415 415  |(% style="width:159px" %)(% style="color:#2980b9" %)VIS_CTY|(% style="width:126px" %)(% style="color:#2980b9" %)MX, DE
416 416  |(% style="width:159px" %)(% style="color:#27ae60" %)OBS_STATUS|(% style="width:126px" %)(% style="color:#27ae60" %)A
417 417  
418 -**Use case 6: A Constraint on allowed values for some Dimensions combined with allowed values for Measures**
417 +**Use case 6: A (% style="color:#e74c3c" %)Constraint(%%) on allowed values for some [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] combined with allowed values for [[Measures>>doc:sdmx:Glossary 2\.1.Measure.WebHome]]**
419 419  
420 420  R1: Allow monthly data, for Germany, with [[unit>>doc:sdmx:Glossary 2\.1.Statistical unit.WebHome]] euro, and [[measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] choice is  'A' R2: Allow quarterly data, for Mexico, with [[unit>>doc:sdmx:Glossary 2\.1.Statistical unit.WebHome]] usd, and [[measure>>doc:sdmx:Glossary 2\.1.Measure.WebHome]] choice is  'B'
421 421  
... ... @@ -431,9 +431,9 @@
431 431  |(% style="width:153px" %)(% style="color:#27ae60" %)[[UNIT>>doc:sdmx:Glossary 2\.1.Statistical unit.WebHome]]|(% style="width:149px" %)(% style="color:#27ae60" %)USD
432 432  |(% style="width:153px" %)CHOICE|(% style="width:149px" %)B
433 433  
434 -**Use Case 7: A Constraint with wildcards for Codes and removePrefix property**
433 +**Use Case 7: A (% style="color:#e74c3c" %)Constraint(%%) with wildcards for [[Codes>>doc:sdmx:Glossary 2\.1.Code.WebHome]] and removePrefix property**
435 435  
436 -For this example, we assume that the VIS_CTY [[representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]] has been prefixed with prefix ‘AREA_’. In this [[Constraint>>doc:sdmx:Glossary 2\.1.Constraint.WebHome]], we need to remove the prefix.
435 +For this example, we assume that the VIS_CTY [[representation>>doc:sdmx:Glossary 2\.1.Representation.WebHome]] has been prefixed with prefix ‘AREA_’. In this (% style="color:#e74c3c" %)Constraint(%%), we need to remove the prefix.
437 437  
438 438  R1: Allow monthly and quarterly data
439 439  
... ... @@ -447,7 +447,7 @@
447 447  |(% style="width:264px" %)(% style="color:#2980b9" %)FREQ|(% style="width:112px" %)(% style="color:#2980b9" %)M, Q
448 448  |(% style="width:264px" %)(% style="color:#2980b9" %)VIS_CTY (removePrefix=’AREA_’)|(% style="width:112px" %)(% style="color:#2980b9" %)M%
449 449  
450 -**Use Case 8: A Constraint with multilingual support on Attributes**
449 +**Use Case 8: A (% style="color:#e74c3c" %)Constraint(%%) with multilingual support on [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]]**
451 451  
452 452  R1: Allow monthly and quarterly data
453 453  
... ... @@ -462,13 +462,11 @@
462 462  |(% style="width:190px" %)(% style="color:#2980b9" %)VIS_CTY|(% style="width:189px" %)(% style="color:#2980b9" %)MX
463 463  |(% style="width:190px" %)(% style="color:#27ae60" %)[[COMMENT>>doc:sdmx:Glossary 2\.1.Comment.WebHome]] (lang=’en’)|(% style="width:189px" %)(% style="color:#27ae60" %)%adjusted%
464 464  
465 -**Use Case 9: A Constraint on allowed values for Dimensions combined with allowed values for Metadata Attributes**
464 +**Use Case 9: A (% style="color:#e74c3c" %)Constraint(%%) on allowed values for [[Dimensions>>doc:sdmx:Glossary 2\.1.Dimension.WebHome]] combined with allowed** values for Metadata [[Attributes>>doc:sdmx:Glossary 2\.1.Attribute.WebHome]] R1: Allow monthly and quarterly data
466 466  
467 -R1: Allow monthly and quarterly data
468 -
469 469  R2: Allow Mexico for vis-à-vis country
470 470  
471 -R3: Allow John Doe for contact
468 +R3: Allow John Doe for (% style="color:#e74c3c" %)contact(%%)
472 472  
473 473  This may be expressed with the following CubeRegion:
474 474  
... ... @@ -475,4 +475,4 @@
475 475  (% style="width:388.294px" %)
476 476  |(% style="width:181px" %)(% style="color:#2980b9" %)FREQ|(% style="width:204px" %)(% style="color:#2980b9" %)M, Q
477 477  |(% style="width:181px" %)(% style="color:#2980b9" %)VIS_CTY|(% style="width:204px" %)(% style="color:#2980b9" %)MX
478 -|(% style="width:181px" %)(% style="color:#e74c3c" %)CONTACT|(% style="width:204px" %)(% style="color:#f39c12" %)John Doe
475 +|(% style="width:181px" %)(% style="color: rgb(243, 156, 18); color: rgb(231, 76, 60)" %)CONTACT|(% style="width:204px" %)(% style="color:#f39c12" %)John Doe
© Semantic R&D Group, 2026