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1 -Methodology.SDMX 3\.0 Standards\. Section 6\. Technical Notes.WebHome
1 +Methodology.SDMX 3\.0 Standards\. Section 6\. Technical notes.WebHome
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1 -xwiki:XWiki.helena
1 +xwiki:XWiki.arturkryazhev
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1 +Age|Artefact|Attribute|Code|Code list|Comment|Component|Data provider|Data set|Data structure definition|Dataflow|Dimension|Maintainable artefact|Measure|Member selection|Metadata structure definition|Metadataflow|Provision agreement|Reference metadata|Release policy - release calendar|Representation|Series key|Statistical data and metadata exchange
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4 4  
5 5  == 10.1 Introduction ==
6 6  
7 -A [[Constraint>>doc:Glossary.Constraint.WebHome]] is a [[Maintainable Artefact>>doc:Glossary.Maintainable artefact.WebHome]] that can be associated to one or more of:
7 +A (% style="color:#e74c3c" %)Constraint(%%) is a [[Maintainable Artefact>>doc:Glossary.Maintainable artefact.WebHome]] that can be associated to one or more of:
8 8  
9 9  * Data Structure Definition
10 10  * Metadata Structure Definition
... ... @@ -12,28 +12,28 @@
12 12  * [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]]
13 13  * [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]]
14 14  * Metadata [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]]
15 -* [[Data Provider>>doc:Glossary.Data provider.WebHome]] or Metadata Provider (this is restricted to a [[Release Calendar>>doc:Glossary.Release policy - release calendar.WebHome]] [[Constraint>>doc:Glossary.Constraint.WebHome]])
15 +* [[Data Provider>>doc:Glossary.Data provider.WebHome]] or Metadata Provider (this is restricted to a [[Release Calendar>>doc:Glossary.Release policy - release calendar.WebHome]] (% style="color:#e74c3c" %)Constraint(%%))
16 16  * Simple or Queryable Data Sources
17 -* [[Dataset>>doc:Glossary.Data set.WebHome]]
17 +* Dataset
18 18  * Metadataset
19 19  
20 -Note that regardless of the [[Artefact>>doc:Glossary.Artefact.WebHome]] to which the [[Constraint>>doc:Glossary.Constraint.WebHome]] is associated, it is constraining the contents of [[code lists>>doc:Glossary.Code list.WebHome]] in the [[DSD>>doc:Glossary.Data structure definition.WebHome]] to which the constrained object is related. This does not apply, of course, to a Metadata/[[Data Provider>>doc:Glossary.Data provider.WebHome]] as the latter can be associated, via the (Metadata) [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]], to many MSDs/DSDs. Hence the reason for the restriction on the type of [[Constraint>>doc:Glossary.Constraint.WebHome]] that can be attached to a Metadata/[[Data Provider>>doc:Glossary.Data provider.WebHome]].
20 +Note that regardless of the [[Artefact>>doc:Glossary.Artefact.WebHome]] to which the (% style="color:#e74c3c" %)Constraint(%%) is associated, it is constraining the contents of [[code lists>>doc:Glossary.Code list.WebHome]] in the [[DSD>>doc:Glossary.Data structure definition.WebHome]] to which the constrained object is related. This does not apply, of course, to a Metadata/[[Data Provider>>doc:Glossary.Data provider.WebHome]] as the latter can be associated, via the (Metadata) [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]], to many MSDs/DSDs. Hence the reason for the restriction on the type of (% style="color:#e74c3c" %)Constraint(%%) that can be attached to a Metadata/[[Data Provider>>doc:Glossary.Data provider.WebHome]].
21 21  
22 22  == 10.2 Types of Constraint ==
23 23  
24 -The [[Constraint>>doc:Glossary.Constraint.WebHome]] can be of one of two types:
24 +The (% style="color:#e74c3c" %)Constraint(%%) can be of one of two types:
25 25  
26 -* Data [[constraint>>doc:Glossary.Constraint.WebHome]]
27 -* Metadata [[constraint>>doc:Glossary.Constraint.WebHome]]
26 +* Data (% style="color:#e74c3c" %)constraint
27 +* Metadata (% style="color:#e74c3c" %)constraint
28 28  
29 -The Data [[Constraint>>doc:Glossary.Constraint.WebHome]] may serve two different perspectives, depending on the way the latter is retrieved. These are:
29 +The Data (% style="color:#e74c3c" %)Constraint(%%) may serve two different perspectives, depending on the way the latter is retrieved. These are:
30 30  
31 -* Allowed [[constraint>>doc:Glossary.Constraint.WebHome]]
32 -* Actual [[constraint>>doc:Glossary.Constraint.WebHome]]
31 +* Allowed (% style="color:#e74c3c" %)constraint
32 +* Actual (% style="color:#e74c3c" %)constraint
33 33  
34 -The former (allowed – also valid for Metadata [[Constraint>>doc:Glossary.Constraint.WebHome]]) is specified by a data or metadata provider or consumer for sharing the allowed data and metadata in the context of their [[DSD>>doc:Glossary.Data structure definition.WebHome]] or [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] exchanges, e.g., only Monthly data for a specific [[Dataflow>>doc:Glossary.Dataflow.WebHome]]. The latter (actual) is a dynamic [[Constraint>>doc:Glossary.Constraint.WebHome]] in response to an availability request (only possible for data).
34 +The former (allowed – also valid for Metadata (% style="color:#e74c3c" %)Constraint(%%)) is specified by a data or metadata provider or consumer for sharing the allowed data and metadata in the context of their [[DSD>>doc:Glossary.Data structure definition.WebHome]] or [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] exchanges, e.g., only Monthly data for a specific [[Dataflow>>doc:Glossary.Dataflow.WebHome]]. The latter (actual) is a dynamic (% style="color:#e74c3c" %)Constraint(%%) in response to an availability request (only possible for data).
35 35  
36 -For Actual Data [[Constraint>>doc:Glossary.Constraint.WebHome]], there a few characteristics that are worth noting:
36 +For Actual Data (% style="color:#e74c3c" %)Constraints(%%), there a few characteristics that are worth noting:
37 37  
38 38  * They can only be retrieved by the availability requests (as specified in the REST API).
39 39  * They depend on the data available in an [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] Web Service and thus they can only be dynamically generated according to that data.
... ... @@ -44,7 +44,7 @@
44 44  
45 45  === 10.3.1 Scope of a Constraint ===
46 46  
47 -A [[Constraint>>doc:Glossary.Constraint.WebHome]] is used specify the content of a data or metadata source in terms of the [[component>>doc:Glossary.Component.WebHome]] values or the keys.
47 +A (% style="color:#e74c3c" %)Constraint(%%) is used specify the content of a data or metadata source in terms of the [[component>>doc:Glossary.Component.WebHome]] values or the keys.
48 48  
49 49  In terms of data the [[components>>doc:Glossary.Component.WebHome]] are:
50 50  
... ... @@ -59,14 +59,14 @@
59 59  
60 60  * Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]]
61 61  
62 -For a [[Constraint>>doc:Glossary.Constraint.WebHome]] based on a [[DSD>>doc:Glossary.Data structure definition.WebHome]] the [[Constraint>>doc:Glossary.Constraint.WebHome]] can reference one or more of:
62 +For a (% style="color:#e74c3c" %)Constraint(%%) based on a [[DSD>>doc:Glossary.Data structure definition.WebHome]] the (% style="color:#e74c3c" %)Constraint(%%) can reference one or more of:
63 63  
64 -* [[Data Structure Definition>>doc:Glossary.Data structure definition.WebHome]]
64 +* Data Structure Definition
65 65  * [[Dataflow>>doc:Glossary.Dataflow.WebHome]]
66 66  * [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]]
67 67  * [[Data Provider>>doc:Glossary.Data provider.WebHome]]
68 68  
69 -For a [[Constraint>>doc:Glossary.Constraint.WebHome]] based on an [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] the [[Constraint>>doc:Glossary.Constraint.WebHome]] can reference one or more of:
69 +For a (% style="color:#e74c3c" %)Constraint(%%) based on an [[MSD>>doc:Glossary.Metadata structure definition.WebHome]] the (% style="color:#e74c3c" %)Constraint(%%) can reference one or more of:
70 70  
71 71  * Metadata Structure Definition
72 72  * [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]]
... ... @@ -74,31 +74,31 @@
74 74  * Metadata Provider
75 75  * Metadata Set
76 76  
77 -Furthermore, there can be more than one [[Constraint>>doc:Glossary.Constraint.WebHome]] specified for a specific object e.g., more than one [[Constraint>>doc:Glossary.Constraint.WebHome]] for a specific [[DSD>>doc:Glossary.Data structure definition.WebHome]].
77 +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:Glossary.Data structure definition.WebHome]].
78 78  
79 -In view of the flexibility of [[constraints>>doc:Glossary.Constraint.WebHome]] attachment, clear rules on their usage are required. These are elaborated below.
79 +In view of the flexibility of (% style="color:#e74c3c" %)constraints(%%) attachment, clear rules on their usage are required. These are elaborated below.
80 80  
81 81  === 10.3.2 Multiple Constraints ===
82 82  
83 -There can be many [[Constraint>>doc:Glossary.Constraint.WebHome]] for any Constrainable [[Artefact>>doc:Glossary.Artefact.WebHome]] (e.g., [[DSD>>doc:Glossary.Data structure definition.WebHome]]), subject to the following restrictions:
83 +There can be many (% style="color:#e74c3c" %)Constraints(%%) for any Constrainable [[Artefact>>doc:Glossary.Artefact.WebHome]] (e.g., [[DSD>>doc:Glossary.Data structure definition.WebHome]]), subject to the following restrictions:
84 84  
85 85  ==== 10.3.2.1 Cube Region ====
86 86  
87 -A [[Constraint>>doc:Glossary.Constraint.WebHome]] can contain multiple [[Member Selections>>doc:Glossary.Member selection.WebHome]] (e.g., [[Dimensions>>doc:Glossary.Dimension.WebHome]]).
87 +A (% style="color:#e74c3c" %)Constraint(%%) can contain multiple [[Member Selections>>doc:Glossary.Member selection.WebHome]] (e.g., [[Dimensions>>doc:Glossary.Dimension.WebHome]]).
88 88  
89 89  * A specific [[Member Selection>>doc:Glossary.Member selection.WebHome]] (e.g., [[Dimension>>doc:Glossary.Dimension.WebHome]] FREQ) can only be contained in one Cube Region for any one attached object (e.g., a specific [[DSD>>doc:Glossary.Data structure definition.WebHome]] or specific [[Dataflow>>doc:Glossary.Dataflow.WebHome]]).
90 90  * [[Component>>doc:Glossary.Component.WebHome]] values within a [[Member Selection>>doc:Glossary.Member selection.WebHome]] may define a validity period. Otherwise, the value is valid for the whole validity of the Cube Region.
91 -* For partial reference resolution purposes (as per the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] REST API), the latest non-draft [[Constraint>>doc:Glossary.Constraint.WebHome]] must be considered.
91 +* For partial reference resolution purposes (as per the [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] REST API), the latest non-draft (% style="color:#e74c3c" %)Constraint(%%) must be considered.
92 92  * A [[Member Selection>>doc:Glossary.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), or localised values (e.g., text for English only). Lack of locale means any language may match. Cascading values are mutual exclusive to localised values, as the former refer to coded values, while the latter refer to uncoded values.
93 93  * Any values included in a [[Member Selection>>doc:Glossary.Member selection.WebHome]] for [[Components>>doc:Glossary.Component.WebHome]] with an array data type (i.e., [[Measures>>doc:Glossary.Measure.WebHome]], [[Attributes>>doc:Glossary.Attribute.WebHome]] or Metadata [[Attributes>>doc:Glossary.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:Glossary.Code.WebHome]] ‘A’ for an [[Attribute>>doc:Glossary.Attribute.WebHome]] will allow any instance of the [[Attribute>>doc:Glossary.Attribute.WebHome]] that includes ‘A’, like [‘A’, ‘B’] or [‘A’, ‘C’, ‘D’]. Similarly, if [[Code>>doc:Glossary.Code.WebHome]] ‘A’ was excluded, all those arrays of values would also be excluded.
94 94  
95 95  ==== 10.3.2.2 Key Set ====
96 96  
97 -Key Sets will be processed in the order they appear in the [[Constraint>>doc:Glossary.Constraint.WebHome]] and wildcards can be used (e.g., any key position not reference explicitly is deemed to be "all values").
97 +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").
98 98  
99 99  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:Glossary.Series key.WebHome]]. This will minimize the risk that keys are inadvertently included or excluded.
100 100  
101 -In addition, [[Attribute>>doc:Glossary.Attribute.WebHome]], [[Measure>>doc:Glossary.Measure.WebHome]] and Metadata [[Attribute>>doc:Glossary.Attribute.WebHome]] [[constraints>>doc:Glossary.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.
101 +In addition, [[Attribute>>doc:Glossary.Attribute.WebHome]], [[Measure>>doc:Glossary.Measure.WebHome]] and Metadata [[Attribute>>doc:Glossary.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.
102 102  
103 103  Finally, a validity period may be specified per Key.
104 104  
... ... @@ -106,52 +106,52 @@
106 106  
107 107  ==== 10.3.3.1 Attachment levels of a Constraint ====
108 108  
109 -There are three levels of [[Constraint>>doc:Glossary.Constraint.WebHome]] attachment for which these inheritance rules apply:
109 +There are three (% style="color:#e74c3c" %)levels(%%) of (% style="color:#e74c3c" %)constraint(%%) attachment for which these inheritance rules apply:
110 110  
111 -• [[DSD>>doc:Glossary.Data structure definition.WebHome]]/[[MSD>>doc:Glossary.Metadata structure definition.WebHome]] – top level o [[Dataflow>>doc:Glossary.Dataflow.WebHome]]/[[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] – second level
111 +• [[DSD>>doc:Glossary.Data structure definition.WebHome]]/[[MSD>>doc:Glossary.Metadata structure definition.WebHome]] – top (% style="color:#e74c3c" %)level(%%) o [[Dataflow>>doc:Glossary.Dataflow.WebHome]]/[[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] – second (% style="color:#e74c3c" %)level
112 112  
113 -▪ [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] – third level
113 +▪ [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] – third (% style="color:#e74c3c" %)level
114 114  
115 -Note that these rules do not apply to the Simple Datasource or Queryable Datasource; the [[Constraint>>doc:Glossary.Constraint.WebHome]](s) attached to these [[artefacts>>doc:Glossary.Artefact.WebHome]] are resolved for this [[artefact>>doc:Glossary.Artefact.WebHome]] only and do not take into account [[Constraints>>doc:Glossary.Constraint.WebHome]] attached to other [[artefacts>>doc:Glossary.Artefact.WebHome]] (e.g., [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]], [[Dataflow>>doc:Glossary.Dataflow.WebHome]], [[DSD>>doc:Glossary.Data structure definition.WebHome]]).
115 +Note that these rules do not apply to the Simple Datasource or Queryable Datasource; the (% style="color:#e74c3c" %)Constraint(%%)(s) attached to these [[artefacts>>doc:Glossary.Artefact.WebHome]] are resolved for this [[artefact>>doc:Glossary.Artefact.WebHome]] only and do not take into account (% style="color:#e74c3c" %)Constraints(%%) attached to other [[artefacts>>doc:Glossary.Artefact.WebHome]] (e.g., [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]], [[Dataflow>>doc:Glossary.Dataflow.WebHome]], [[DSD>>doc:Glossary.Data structure definition.WebHome]]).
116 116  
117 -It is not necessary for a [[Constraint>>doc:Glossary.Constraint.WebHome]] to be attached to a higher level [[artefact>>doc:Glossary.Artefact.WebHome]]. e.g., it is valid to have a [[Constraint>>doc:Glossary.Constraint.WebHome]] for a [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] where there are no [[constraints>>doc:Glossary.Constraint.WebHome]] attached the relevant [[dataflow>>doc:Glossary.Dataflow.WebHome]] or [[DSD>>doc:Glossary.Data structure definition.WebHome]].
117 +It is not necessary for a (% style="color:#e74c3c" %)Constraint(%%) to be attached to a higher (% style="color:#e74c3c" %)level(%%) [[artefact>>doc:Glossary.Artefact.WebHome]]. e.g., it is valid to have a (% style="color:#e74c3c" %)Constraint(%%) for a [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] where there are no (% style="color:#e74c3c" %)constraints(%%) attached the relevant [[dataflow>>doc:Glossary.Dataflow.WebHome]] or [[DSD>>doc:Glossary.Data structure definition.WebHome]].
118 118  
119 119  ==== 10.3.3.2 Cascade rules for processing Constraints ====
120 120  
121 -The processing of the [[constraint>>doc:Glossary.Constraint.WebHome]] on either [[Dataflow>>doc:Glossary.Dataflow.WebHome]]/[[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] or [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] must take into account the [[constraints>>doc:Glossary.Constraint.WebHome]] declared at higher levels. The rules for the lower-level [[constraints>>doc:Glossary.Constraint.WebHome]] (attached to [[Dataflow>>doc:Glossary.Dataflow.WebHome]]/ [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] and [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]]) are detailed below.
121 +The processing of the (% style="color:#e74c3c" %)constraints(%%) on either [[Dataflow>>doc:Glossary.Dataflow.WebHome]]/[[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] or [[Provision Agreement>>doc:Glossary.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:Glossary.Dataflow.WebHome]]/ [[Metadataflow>>doc:Glossary.Metadataflow.WebHome]] and [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]]) are detailed below.
122 122  
123 -Note that there can be a situation where a [[constraint>>doc:Glossary.Constraint.WebHome]] is specified at a lower level before a [[constraint>>doc:Glossary.Constraint.WebHome]] is specified at a higher level. Therefore, it is possible that a higher-level [[constraint>>doc:Glossary.Constraint.WebHome]] makes a lower-level constraint invalid. [[SDMX>>doc:Glossary.Statistical data and metadata exchange.WebHome]] makes no rules on how such a conflict should be handled when processing the [[constraint>>doc:Glossary.Constraint.WebHome]] for attachment. However, the cascade rules on evaluating [[constraints>>doc:Glossary.Constraint.WebHome]] for usage are clear – the higher-level [[constraint>>doc:Glossary.Constraint.WebHome]] takes precedence in any conflicts that result in a less restrictive specification at the lower level.
123 +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:Glossary.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(%%).
124 124  
125 125  ==== 10.3.3.3 Cube Region ====
126 126  
127 -It is not necessary to have a [[Constraint>>doc:Glossary.Constraint.WebHome]] on the higher-level [[artefact>>doc:Glossary.Artefact.WebHome]] (e.g., [[DSD>>doc:Glossary.Data structure definition.WebHome]] referenced by the [[Dataflow>>doc:Glossary.Dataflow.WebHome]]), but if there is such a [[Constraint>>doc:Glossary.Constraint.WebHome]] at the higher level(s) then:
127 +It is not necessary to have a (% style="color:#e74c3c" %)Constraint(%%) on the higher-(% style="color:#e74c3c" %)level(%%) [[artefact>>doc:Glossary.Artefact.WebHome]] (e.g., [[DSD>>doc:Glossary.Data structure definition.WebHome]] referenced by the [[Dataflow>>doc:Glossary.Dataflow.WebHome]]), but if there is such a (% style="color:#e74c3c" %)Constraint(%%) at the higher (% style="color:#e74c3c" %)level(%%)(s) then:
128 128  
129 -* The lower-level [[Constraint>>doc:Glossary.Constraint.WebHome]] cannot be less restrictive than the [[Constraint>>doc:Glossary.Constraint.WebHome]] specified for the same [[Member Selection>>doc:Glossary.Member selection.WebHome]] (e.g. [[Dimension>>doc:Glossary.Dimension.WebHome]]) at the next higher level, which constrains that [[Member Selection>>doc:Glossary.Member selection.WebHome]]. For example, if the [[Dimension>>doc:Glossary.Dimension.WebHome]] FREQ is constrained to A, Q in a [[DSD>>doc:Glossary.Data structure definition.WebHome]], then the [[Constraint>>doc:Glossary.Constraint.WebHome]] at the [[Dataflow>>doc:Glossary.Dataflow.WebHome]] or [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] cannot be A, Q, M or even just M – it can only further constrain A, Q.
130 -* The [[Constraint>>doc:Glossary.Constraint.WebHome]] at the lower level for any one [[Member Selection>>doc:Glossary.Member selection.WebHome]] further constrains the content for the same [[Member Selection>>doc:Glossary.Member selection.WebHome]] at the higher level(s).
131 -* Any [[Member Selection>>doc:Glossary.Member selection.WebHome]], which is not referenced in a [[Constraint>>doc:Glossary.Constraint.WebHome]], is deemed to be constrained according to the [[Constraint>>doc:Glossary.Constraint.WebHome]] specified at the next higher level which [[constraints>>doc:Glossary.Constraint.WebHome]] that [[Member Selection>>doc:Glossary.Member selection.WebHome]].
132 -* If there is a conflict when resolving the [[Constraint>>doc:Glossary.Constraint.WebHome]] in terms of a lower-level [[Constraint>>doc:Glossary.Constraint.WebHome]] being less restrictive than a higher-level [[Constraint>>doc:Glossary.Constraint.WebHome]], then the [[Constraint>>doc:Glossary.Constraint.WebHome]] at the higher-level is used.
129 +* 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:Glossary.Member selection.WebHome]] (e.g. [[Dimension>>doc:Glossary.Dimension.WebHome]]) at the next higher (% style="color:#e74c3c" %)level(%%), which constrains that [[Member Selection>>doc:Glossary.Member selection.WebHome]]. For example, if the [[Dimension>>doc:Glossary.Dimension.WebHome]] FREQ is constrained to A, Q in a [[DSD>>doc:Glossary.Data structure definition.WebHome]], then the (% style="color:#e74c3c" %)Constraint(%%) at the [[Dataflow>>doc:Glossary.Dataflow.WebHome]] or [[Provision Agreement>>doc:Glossary.Provision agreement.WebHome]] cannot be A, Q, M or even just M – it can only further constrain A, Q.
130 +* The (% style="color:#e74c3c" %)Constraint(%%) at the lower (% style="color:#e74c3c" %)level(%%) for any one [[Member Selection>>doc:Glossary.Member selection.WebHome]] further constrains the content for the same [[Member Selection>>doc:Glossary.Member selection.WebHome]] at the higher (% style="color:#e74c3c" %)level(%%)(s).
131 +* Any [[Member Selection>>doc:Glossary.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:Glossary.Member selection.WebHome]].
132 +* 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.
133 133  
134 -Note that it is possible for a [[Constraint>>doc:Glossary.Constraint.WebHome]] at a higher level to constrain, say, four [[Dimensions>>doc:Glossary.Dimension.WebHome]] in a single [[Constraint>>doc:Glossary.Constraint.WebHome]], and a [[Constraint>>doc:Glossary.Constraint.WebHome]] at a lower level to constrain the same four in two, three, or four [[Constraint>>doc:Glossary.Constraint.WebHome]].
134 +Note that it is possible for a (% style="color:#e74c3c" %)Constraint(%%) at a higher (% style="color:#e74c3c" %)level(%%) to constrain, say, four [[Dimensions>>doc:Glossary.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(%%).
135 135  
136 136  ==== 10.3.3.4 Key Set ====
137 137  
138 -It is not necessary to have a [[Constraint>>doc:Glossary.Constraint.WebHome]] on the higher-level [[artefact>>doc:Glossary.Artefact.WebHome]] (e.g., [[DSD>>doc:Glossary.Data structure definition.WebHome]] referenced by the [[Dataflow>>doc:Glossary.Dataflow.WebHome]]), but if there is such a [[Constraint>>doc:Glossary.Constraint.WebHome]] at the higher level(s) then:
138 +It is not necessary to have a (% style="color:#e74c3c" %)Constraint(%%) on the higher-(% style="color:#e74c3c" %)level(%%) [[artefact>>doc:Glossary.Artefact.WebHome]] (e.g., [[DSD>>doc:Glossary.Data structure definition.WebHome]] referenced by the [[Dataflow>>doc:Glossary.Dataflow.WebHome]]), but if there is such a (% style="color:#e74c3c" %)Constraint(%%) at the higher (% style="color:#e74c3c" %)level(%%)(s) then:
139 139  
140 -* The lower-level [[Constraint>>doc:Glossary.Constraint.WebHome]] cannot be less restrictive than the [[Constraint>>doc:Glossary.Constraint.WebHome]] specified at the higher level.
141 -* The [[Constraint>>doc:Glossary.Constraint.WebHome]] at the lower level for any one [[Member Selection>>doc:Glossary.Member selection.WebHome]] further constrains the keys specified at the higher level(s).
142 -* Any [[Member Selection>>doc:Glossary.Member selection.WebHome]], which is not referenced in a [[Constraint>>doc:Glossary.Constraint.WebHome]], is deemed to be constrained according to the [[Constraint>>doc:Glossary.Constraint.WebHome]] specified at the next higher level which [[constraints>>doc:Glossary.Constraint.WebHome]] that [[Member Selection>>doc:Glossary.Member selection.WebHome]].
143 -* If there is a conflict when resolving the keys in the [[Constraint>>doc:Glossary.Constraint.WebHome]] at two levels, in terms of a lower-level [[constraints>>doc:Glossary.Constraint.WebHome]] being less restrictive than a higher-level [[Constraint>>doc:Glossary.Constraint.WebHome]], then the offending keys specified at the lower level are not deemed part of the [[Constraint>>doc:Glossary.Constraint.WebHome]].
140 +* 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(%%).
141 +* The (% style="color:#e74c3c" %)Constraint(%%) at the lower (% style="color:#e74c3c" %)level(%%) for any one [[Member Selection>>doc:Glossary.Member selection.WebHome]] further constrains the keys specified at the higher (% style="color:#e74c3c" %)level(%%)(s).
142 +* Any [[Member Selection>>doc:Glossary.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:Glossary.Member selection.WebHome]].
143 +* 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(%%).
144 144  
145 -Note that a Key in a Key Set can have wildcarded [[Components>>doc:Glossary.Component.WebHome]]. For instance, the [[Constraint>>doc:Glossary.Constraint.WebHome]] may simply constrain the [[Dimension>>doc:Glossary.Dimension.WebHome]] FREQ to "A", and all keys where the FREQ="A" are therefore valid.
145 +Note that a Key in a Key Set can have wildcarded [[Components>>doc:Glossary.Component.WebHome]]. For instance, the (% style="color:#e74c3c" %)Constraint(%%) may simply constrain the [[Dimension>>doc:Glossary.Dimension.WebHome]] FREQ to "A", and all keys where the FREQ="A" are therefore valid.
146 146  
147 147  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.
148 148  
149 -*
150 -*1. Determine all possible keys that are valid at the higher level.
151 -*1. These keys are deemed to be inherited by the lower-level constrained object, subject to the [[Constraint>>doc:Glossary.Constraint.WebHome]] specified at the lower level.
152 -*1. Determine all possible keys that are possible using the [[Constraint>>doc:Glossary.Constraint.WebHome]] specified at the lower level.
153 -*1. At the lower level inherit all keys that match with the higher-level [[Constraint>>doc:Glossary.Constraint.WebHome]].
154 -*1. If there are keys in the lower-level [[Constraint>>doc:Glossary.Constraint.WebHome]] that are not inherited then the key is invalid (i.e., it is less restrictive).
149 +*
150 +*1. Determine all possible keys that are valid at the higher (% style="color:#e74c3c" %)level(%%).
151 +*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(%%).
152 +*1. Determine all possible keys that are possible using the (% style="color:#e74c3c" %)Constraints(%%) specified at the lower (% style="color:#e74c3c" %)level(%%).
153 +*1. At the lower (% style="color:#e74c3c" %)level(%%) inherit all keys that match with the higher-(% style="color:#e74c3c" %)level(%%) (% style="color:#e74c3c" %)Constraint(%%).
154 +*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).
155 155  
156 156  === 10.3.4 Constraints Examples ===
157 157  
... ... @@ -166,7 +166,7 @@
166 166  * AGE – Age
167 167  * CAS – Current Activity Status
168 168  
169 -In the [[DSD>>doc:Glossary.Data structure definition.WebHome]], common [[code lists>>doc:Glossary.Code list.WebHome]] are used and the requirement is to restrict these at various levels to specify the actual [[code>>doc:Glossary.Code.WebHome]] that are valid for the object to which the [[Constraint>>doc:Glossary.Constraint.WebHome]] is attached.
169 +In the [[DSD>>doc:Glossary.Data structure definition.WebHome]], common [[code lists>>doc:Glossary.Code list.WebHome]] are used and the requirement is to restrict these at various (% style="color:#e74c3c" %)levels(%%) to specify the actual [[code>>doc:Glossary.Code.WebHome]] that are valid for the object to which the (% style="color:#e74c3c" %)Constraint(%%) is attached.
170 170  
171 171  [[image:SDMX 3-0-0 SECTION 6 FINAL-1.0_en_77bea5e.png||height="344" width="554"]]
172 172  
... ... @@ -182,7 +182,7 @@
182 182  
183 183  [[AGE>>doc:Glossary.Age.WebHome]] is constrained for the [[DSD>>doc:Glossary.Data structure definition.WebHome]] and is further restricted for the [[Dataflow>>doc:Glossary.Dataflow.WebHome]] CENSUS_CUBE1.
184 184  
185 -* The same [[Constraint>>doc:Glossary.Constraint.WebHome]] applies to both Provision Agreements.
185 +* The same (% style="color:#e74c3c" %)Constraint(%%) applies to both Provision Agreements.
186 186  
187 187  The cascade rules elaborated above result as follows:
188 188  
... ... @@ -192,38 +192,38 @@
192 192  
193 193  [[Dataflow>>doc:Glossary.Dataflow.WebHome]] CENSUS_CUBE1
194 194  
195 -* Constrained by restricting the [[code list>>doc:Glossary.Code list.WebHome]] for the [[AGE>>doc:Glossary.Age.WebHome]] [[Dimension>>doc:Glossary.Dimension.WebHome]] to [[codes>>doc:Glossary.Code.WebHome]] 002 and 003 (note that this is a more restrictive [[constraint>>doc:Glossary.Constraint.WebHome]] than that declared for the [[DSD>>doc:Glossary.Data structure definition.WebHome]] which specifies all [[codes>>doc:Glossary.Code.WebHome]] except [[code>>doc:Glossary.Code.WebHome]] 001).
195 +* Constrained by restricting the [[code list>>doc:Glossary.Code list.WebHome]] for the [[AGE>>doc:Glossary.Age.WebHome]] [[Dimension>>doc:Glossary.Dimension.WebHome]] to [[codes>>doc:Glossary.Code.WebHome]] 002 and 003 (note that this is a more restrictive (% style="color:#e74c3c" %)constraint(%%) than that declared for the [[DSD>>doc:Glossary.Data structure definition.WebHome]] which specifies all [[codes>>doc:Glossary.Code.WebHome]] except [[code>>doc:Glossary.Code.WebHome]] 001).
196 196  ** Restricts the CAS [[codes>>doc:Glossary.Code.WebHome]] to 003 and 004.
197 197  
198 198  [[Dataflow>>doc:Glossary.Dataflow.WebHome]] CENSUS_CUBE2
199 199  
200 200  * Restricts the [[code list>>doc:Glossary.Code list.WebHome]] for the CAS [[Dimension>>doc:Glossary.Dimension.WebHome]] to [[codes>>doc:Glossary.Code.WebHome]] TOT and NAP.
201 -** Inherits the [[AGE>>doc:Glossary.Age.WebHome]] [[constraints>>doc:Glossary.Constraint.WebHome]] applied at the level of the [[DSD>>doc:Glossary.Data structure definition.WebHome]].
201 +** Inherits the [[AGE>>doc:Glossary.Age.WebHome]] (% style="color:#e74c3c" %)constraint(%%) applied at the (% style="color:#e74c3c" %)level(%%) of the [[DSD>>doc:Glossary.Data structure definition.WebHome]].
202 202  
203 203  Provision Agreement CENSUS_CUBE1_IT
204 204  
205 205  * Restricts the [[codes>>doc:Glossary.Code.WebHome]] for the GEO [[Dimension>>doc:Glossary.Dimension.WebHome]] to IT and its children.
206 -** Inherits the [[constraints>>doc:Glossary.Constraint.WebHome]] from [[Dataflow>>doc:Glossary.Dataflow.WebHome]] CENSUS_CUBE1 for the [[AGE>>doc:Glossary.Age.WebHome]] and CAS Dimensions.
206 +** Inherits the (% style="color:#e74c3c" %)constraints(%%) from [[Dataflow>>doc:Glossary.Dataflow.WebHome]] CENSUS_CUBE1 for the [[AGE>>doc:Glossary.Age.WebHome]] and CAS Dimensions.
207 207  
208 208  Provision Agreement CENSUS_CUBE2_IT
209 209  
210 210  * Restricts the [[codes>>doc:Glossary.Code.WebHome]] for the GEO [[Dimension>>doc:Glossary.Dimension.WebHome]] to IT and its children.
211 -** Inherits the [[constraints>>doc:Glossary.Constraint.WebHome]] from [[Dataflow>>doc:Glossary.Dataflow.WebHome]] CENSUS_CUBE2 for the CAS [[Dimension>>doc:Glossary.Dimension.WebHome]].
212 -** Inherits the [[AGE>>doc:Glossary.Age.WebHome]] [[constraint>>doc:Glossary.Constraint.WebHome]] applied at the level of the [[DSD>>doc:Glossary.Data structure definition.WebHome]].
211 +** Inherits the (% style="color:#e74c3c" %)constraints(%%) from [[Dataflow>>doc:Glossary.Dataflow.WebHome]] CENSUS_CUBE2 for the CAS [[Dimension>>doc:Glossary.Dimension.WebHome]].
212 +** Inherits the [[AGE>>doc:Glossary.Age.WebHome]] (% style="color:#e74c3c" %)constraint(%%) applied at the (% style="color:#e74c3c" %)level(%%) of the [[DSD>>doc:Glossary.Data structure definition.WebHome]].
213 213  
214 -The [[Constraint>>doc:Glossary.Constraint.WebHome]] are defined as follows:
214 +The (% style="color:#e74c3c" %)Constraints(%%) are defined as follows:
215 215  
216 216  DSD Constraint
217 217  
218 218  [[image:1747386911707-332.png]]
219 219  
220 -Dataflow [[Constraints>>doc:Glossary.Constraint.WebHome]]
220 +Dataflow Constraints
221 221  
222 222  [[image:1747386933952-158.png]]
223 223  
224 224  [[image:1747386970127-658.png]]
225 225  
226 -Provision Agreement [[Constraints>>doc:Glossary.Constraint.WebHome]]
226 +Provision Agreement Constraint
227 227  
228 228  [[image:1747386991329-805.png]]
229 229  
... ... @@ -289,9 +289,9 @@
289 289  
290 290  [[image:1747387330751-405.png]]
291 291  
292 -The problem with this approach is that according to the business rule for [[Constraint>>doc:Glossary.Constraint.WebHome]], only one should be specified per [[Component>>doc:Glossary.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).
292 +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:Glossary.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).
293 293  
294 -Nevertheless, there is a much easier approach to that; this is the cascading mechanism of [[Constraint>>doc:Glossary.Constraint.WebHome]] (as shown in 10.3.4.1). Hence, these rules would be expressed into two (% style="color:#e74c3c" %)levels(%%) of [[Constraint>>doc:Glossary.Constraint.WebHome]], e.g., [[DSD>>doc:Glossary.Data structure definition.WebHome]] and [[Dataflows>>doc:Glossary.Dataflow.WebHome]]:
294 +Nevertheless, there is a much easier approach to that; this is the cascading mechanism of (% style="color:#e74c3c" %)Constraints(%%) (as shown in 10.3.4.1). Hence, these rules would be expressed into two (% style="color:#e74c3c" %)levels(%%) of (% style="color:#e74c3c" %)Constraints(%%), e.g., [[DSD>>doc:Glossary.Data structure definition.WebHome]] and [[Dataflows>>doc:Glossary.Dataflow.WebHome]]:
295 295  
296 296  [[DSD>>doc:Glossary.Data structure definition.WebHome]] CubeRegion:
297 297  
... ... @@ -305,7 +305,7 @@
305 305  
306 306  [[image:1747387401689-306.png]]
307 307  
308 -===== 10.3.4.2.6 Use case 6: A Constraint on allowed values for some [[Dimensions>>doc:Glossary.Dimension.WebHome]] combined with allowed values for Measures =====
308 +===== 10.3.4.2.6 Use case 6: A Constraint on allowed values for some Dimensions combined with allowed values for Measures =====
309 309  
310 310  R1: Allow monthly data, for Germany, with unit euro, and [[measure>>doc:Glossary.Measure.WebHome]] choice is 'A'
311 311  R2: Allow quarterly data, for Mexico, with unit usd, and [[measure>>doc:Glossary.Measure.WebHome]] choice is 'B' This is may be expressed with the following DataKeySet:
... ... @@ -314,7 +314,7 @@
314 314  
315 315  ===== 10.3.4.2.7 Use Case 7: A Constraint with wildcards for Codes and removePrefix property =====
316 316  
317 -For this example, we assume that the VIS_CTY [[representation>>doc:Glossary.Representation.WebHome]] has been prefixed with prefix ‘AREA_’. In this [[Constraint>>doc:Glossary.Constraint.WebHome]], we need to remove the prefix.
317 +For this example, we assume that the VIS_CTY [[representation>>doc:Glossary.Representation.WebHome]] has been prefixed with prefix ‘AREA_’. In this (% style="color:#e74c3c" %)Constraint(%%), we need to remove the prefix.
318 318  
319 319  R1: Allow monthly and quarterly data
320 320  R2: Allow vis-à-vis countries that start with M
SKMS.Methodology.Code.MethodologyClass[0]
Index
... ... @@ -1,1 +1,0 @@
1 -10
SUZ.Methodology.Code.MethodologyClass[0]
index
... ... @@ -1,0 +1,1 @@
1 +10