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Changes for page 3 SDMX Base Package

Last modified by Helena on 2025/09/10 11:19
From version 12.2
edited by Artur
on 2025/05/20 14:28
Change comment: Update document after refactoring.
To version 6.8
edited by Helena
on 2025/05/20 00:29
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1 -Methodology.SDMX 2\.1 Standards\. Section 2\. Information model\: UML conceptual design.WebHome
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1 -xwiki:XWiki.arturkryazhev
1 +xwiki:XWiki.helena
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113 113  
114 114  === {{id name="_Toc370976"/}}3.4.1 Class Diagram ===
115 115  
116 -[[image:1747690333052-506.png]]
117 -
118 118  **Figure 11: Class Diagram of Basic Data Types**
119 119  
120 120  === {{id name="_Toc370977"/}}3.4.2 Explanation of the Diagram ===
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164 164  (% class="wikigeneratedid" id="HFigure12TheItemSchemePattern" %)
165 165  **Figure 12 The Item Scheme Pattern**
166 166  
167 -=== {{id name="_Toc370981"/}}3.5.3 Explanation of the Diagram ===
165 +===== {{id name="_Toc370981"/}}3.5.3 Explanation of the Diagram =====
168 168  
169 -==== 3.5.3.1 Narrative ====
167 +**3.5.3.1 Narrative**
170 170  
171 171  The //ItemScheme// is an abstract class which defines a set of //Item// (this class is also abstract). Its main purpose is to define a mechanism which can be used to create taxonomies which can classify other parts of the SDMX Information Model. It inherits from //MaintainableArtefact// which gives it the ability to be annotated, have identity, naming, versioning and be associated with an Agency. An example of a concrete class is a CategoryScheme. The associated Category are //Items//.
172 172  
173 -In an exchange environment an ItemScheme is allowed to contain a sub-set of the Items in the maintained //ItemScheme//. If such an //ItemScheme// is disseminated with a sub-set of the Items then the fact that this is a sub-set is denoted by setting the isPartial attribute to “true”.
171 +In an exchange environment an ItemScheme is allowed to contain a sub-set of the Items in the maintained //ItemScheme//. If such an //ItemScheme// is disseminated with a sub-set of the Items then the fact that this is a sub-set is denoted by setting the isPartial attribute to
174 174  
173 +“true”.
174 +
175 175  A “partial” //ItemScheme// cannot be maintained independently in its partial form i.e. it cannot contain //Item//s that are not present in the full //ItemScheme// and the content of any one //Item //(e.g. names and descriptions) cannot deviate from the content in the full //ItemScheme//.
176 176  
177 177  Furthermore, the Id of the //ItemScheme// where isPartial is set to “true” is the same as the Id of the full //ItemScheme// (maintenance agency, id, version). This is important as this is the Id that that is referenced in other structures (e.g. a Codelist referenced in a DSD) and this Id is always the same, regardless of whether the disseminated //ItemScheme// is the full //ItemScheme// or a partial //ItemScheme//.
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178 178  
179 179  The purpose of a partial //ItemScheme// is to support the exchange and dissemination of a subset ItemScheme without the need to maintain multiple //ItemScheme//s which contain the same //Item//s. For instance, when a Codelist is used in a DataStructureDefinition it is sometimes the case that only a sub-set of the Codes in a Codelist are relevant. In this case a partial Codelist can be constructed using the Constraint mechanism explained later in this document.
180 180  
181 -//Item// inherits from //NameableArtefact// which gives it the ability to be annotated and have identity, and therefore has id, uri and urn attributes, a name and a description in the form of an InternationalString. Unlike the parent //ItemScheme//, the //Item// itself is not a //MaintainableArtefact// and therefore cannot have an independent Agency (i.e. it implicitly has the same agency as the //ItemScheme//).
181 +//Item// inherits from //NameableArtefact// which gives it the ability to be annotated and have identity, and therefore has id, uri and urn attributes, a name and a description in the form of an
182 182  
183 +InternationalString. Unlike the parent //ItemScheme//, the //Item// itself is not a //MaintainableArtefact// and therefore cannot have an independent Agency (i.e. it implicitly has the same agency as the //ItemScheme//).
184 +
183 183  The //Item// can be hierarchic and so one //Item// can have child //Item//s. The restriction of the hierarchic association is that a child //Item// can have only parent //Item//.
184 184  
185 185  ==== 3.5.3.2 Definitions ====
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257 257  
258 258  __GroupDimensionDescriptor__: Dimension, Measure Dimension, Time Dimension
259 259  
260 -__MeasureDescriptor__: PrimaryMeasure
262 +MeasureDescriptor: PrimaryMeasure
261 261  
262 262  __AttributeDescriptor:__ Data Attribute
263 263  
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373 373  The Representation is composed of Facets, each of which conveys characteristic information related to the definition of a value domain. Often a set of Facets are needed to convey the required semantic. For example, a sequence is defined by a minimum of two Facets: one to define the start value, and one to define the interval.
374 374  
375 375  (((
376 -(% style="width:1043.29px" %)
377 -|(% style="width:179px" %)**Facet Type**|(% style="width:862px" %)**Explanation**
378 -|(% style="width:179px" %)isSequence|(% style="width:862px" %)The isSequence facet indicates whether the values are intended to be ordered, and it may work in combination with the interval, startValue, and endValue facet or the timeInterval, startTime, and endTime, facets. If this attribute holds a value of true, a start value or time and a numeric or time interval must supplied. If an end value is not given, then the sequence continues indefinitely.
379 -|(% style="width:179px" %)interval|(% style="width:862px" %)The interval attribute specifies the permitted interval (increment) in a sequence. In order for this to be used, the isSequence attribute must have a value of true.
380 -|(% style="width:179px" %)startValue|(% colspan="1" style="width:862px" %)The startValue facet is used in conjunction with the isSequence and interval facets (which must be set in order to use this facet). This facet is used for a numeric sequence, and indicates the starting point of the sequence. This value is mandatory for a numeric sequence to be expressed.
381 -|(% style="width:179px" %)endValue|(% colspan="1" style="width:862px" %)The endValue facet is used in conjunction with the isSequence and interval facets (which must be set in order to use this facet). This facet is used for a numeric sequence, and indicates that ending point (if any) of the sequence.
382 -|(% style="width:179px" %)timeInterval|(% colspan="1" style="width:862px" %)The timeInterval facet indicates the permitted duration in a time sequence. In order for this to be used, the isSequence facet must have a value of true.
383 -|(% style="width:179px" %)startTime|(% colspan="1" style="width:862px" %)The startTime facet is used in conjunction with the isSequence and timeInterval facets (which must be set in order to use this facet). This attribute is used for a time sequence, and indicates the start time of the sequence. This value is mandatory for a time sequence to be expressed.
384 -|(% style="width:179px" %)endTime|(% colspan="1" style="width:862px" %)The endTime facet is used in conjunction with the isSequence and timeInterval facets (which must be set in order to use this facet). This facet is used for a time sequence, and indicates that ending point (if any) of the sequence.
385 -|(% style="width:179px" %)minLength|(% colspan="1" style="width:862px" %)The minLength facet specifies the minimum and length of the value in characters.
386 -|(% style="width:179px" %)maxLength|(% colspan="1" style="width:862px" %)The maxLength facet specifies the maximum length of the value in characters.
387 -|(% style="width:179px" %)minValue|(% colspan="1" style="width:862px" %)The minValue facet is used for inclusive and exclusive ranges, indicating what the lower bound of the range is. If this is used with an inclusive range, a valid value will be greater than or equal to the value specified here. If the inclusive and exclusive data type is not specified (e.g. this facet is used with an integer data type), the value is assumed to be inclusive.
388 -|(% style="width:179px" %)maxValue|(% colspan="1" style="width:862px" %)The maxValue facet is used for inclusive and exclusive ranges, indicating what the upper bound of the range is. If this is used with an inclusive range, a valid value will be less than or equal to the value specified here. If the inclusive and exclusive data type is not specified (e.g. this facet is used with an integer data type), the value is assumed to be inclusive.
389 -|(% style="width:179px" %)decimals|(% colspan="1" style="width:862px" %)The decimals facet indicates the number of characters allowed after the decimal separator.
390 -|(% style="width:179px" %)pattern|(% colspan="1" style="width:862px" %)The pattern attribute holds any regular expression permitted in the implementation syntax (e.g. W3C XML Schema).
378 +|**Facet Type**|**Explanation**|
379 +|isSequence|The isSequence facet indicates whether the values are intended to be ordered, and it may work in combination with the interval, startValue, and endValue facet or the timeInterval, startTime, and endTime, facets. If this attribute holds a value of true, a start value or time and a numeric or time interval must supplied. If an end value is not given, then the sequence continues indefinitely.|
380 +|interval|The interval attribute specifies the permitted interval (increment) in a|
381 +| |(% colspan="2" %)sequence. In order for this to be used, the isSequence attribute must have a value of true.
382 +|startValue|(% colspan="2" %)The startValue facet is used in conjunction with the isSequence and interval facets (which must be set in order to use this facet). This facet is used for a numeric sequence, and indicates the starting point of the sequence. This value is mandatory for a numeric sequence to be expressed.
383 +|endValue|(% colspan="2" %)The endValue facet is used in conjunction with the isSequence and interval facets (which must be set in order to use this facet). This facet is used for a numeric sequence, and indicates that ending point (if any) of the sequence.
384 +|timeInterval|(% colspan="2" %)The timeInterval facet indicates the permitted duration in a time sequence. In order for this to be used, the isSequence facet must have a value of true.
385 +|startTime|(% colspan="2" %)The startTime facet is used in conjunction with the isSequence and timeInterval facets (which must be set in order to use this facet). This attribute is used for a time sequence, and indicates the start time of the sequence. This value is mandatory for a time sequence to be expressed.
386 +|endTime|(% colspan="2" %)The endTime facet is used in conjunction with the isSequence and timeInterval facets (which must be set in order to use this facet). This facet is used for a time sequence, and indicates that ending point (if any) of the sequence.
387 +|minLength|(% colspan="2" %)The minLength facet specifies the minimum and length of the value in characters.
388 +|maxLength|(% colspan="2" %)The maxLength facet specifies the maximum length of the value in characters.
389 +|minValue|(% colspan="2" %)The minValue facet is used for inclusive and exclusive ranges, indicating what the lower bound of the range is. If this is used with an inclusive range, a valid value will be greater than or equal to the value specified here. If the inclusive and exclusive data type is not specified (e.g. this facet is used with an integer data type), the value is assumed to be inclusive.
390 +|maxValue|(% colspan="2" %)The maxValue facet is used for inclusive and exclusive ranges, indicating what the upper bound of the range is. If this is used with an inclusive range, a valid value will be less than or equal to the value specified here. If the inclusive and exclusive data type is not specified (e.g. this facet is used with an integer data type), the value is assumed to be inclusive.
391 +|decimals|(% colspan="2" %)The decimals facet indicates the number of characters allowed after the decimal separator.
392 +|pattern|(% colspan="2" %)The pattern attribute holds any regular expression permitted in the implementation syntax (e.g. W3C XML Schema).
391 391  )))
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