Changes for page 5 Data Structure Definition and Dataset
Last modified by Artur on 2025/09/10 11:19
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... ... @@ -153,10 +153,8 @@ 153 153 154 154 **Figure 30: Representation of DSD Components** 155 155 156 -Each of Dimension, TimeDimension, Measure, DataAttribute and MetadataAttribute can have a Representation specified (using the localRepresentation association). If this is not specified in the DataStructureDefinition then the representation specified for Concept 156 +Each of Dimension, TimeDimension, Measure, DataAttribute and MetadataAttribute can have a Representation specified (using the localRepresentation association). If this is not specified in the DataStructureDefinition then the representation specified for Concept (coreRepresentation) is used. Measure, and DataAttribute may be also represented by multilingual text (as seen in the DataSet diagram further down). An exception is the MetadataAttribute, where its Representation is specified in the MetadataStructureDefinition. 157 157 158 -(coreRepresentation) is used. Measure, and DataAttribute may be also represented by multilingual text (as seen in the DataSet diagram further down). An exception is the MetadataAttribute, where its Representation is specified in the MetadataStructureDefinition. 159 - 160 160 A DataStructureDefinition can be extended to form a derived DataStructureDefinition. This is supported in the StructureMap. 161 161 162 162 ==== 5.3.2.2 Definitions ==== ... ... @@ -169,7 +169,6 @@ 169 169 |StructureUsage|(% style="width:194px" %) |(% style="width:454px" %)See “SDMX Base”. 170 170 |Dataflow|(% style="width:194px" %)((( 171 171 Inherits from 172 - 173 173 //StructureUsage// 174 174 )))|(% style="width:454px" %)Abstract concept (i.e., the structure without any data) of a flow of data that providers will provide for different reference periods. 175 175 | |(% style="width:194px" %)/structure|(% style="width:454px" %)Associates a Dataflow to the Data Structure Definition. ... ... @@ -177,13 +177,11 @@ 177 177 | |(% style="width:194px" %)/grouping|(% style="width:454px" %)An association to a set of metadata concepts that have an identified structural role in a Data Structure Definition. 178 178 |GroupDimensionDescrip tor|(% style="width:194px" %)((( 179 179 Inherits from 180 - 181 181 //ComponentList// 182 182 )))|(% style="width:454px" %)A set of metadata concepts that define a partial key derived from the Dimension Descriptor in a Data Structure Definition. 183 183 | |(% style="width:194px" %)/components|(% style="width:454px" %)An association to the Dimension components that comprise the group. 184 184 |DimensionDescriptor|(% style="width:194px" %)((( 185 185 Inherits from 186 - 187 187 //ComponentList// 188 188 )))|(% style="width:454px" %)An ordered set of metadata concepts that, combined, classify a statistical series, and whose values, when combined (the key) in an instance such as a data set, uniquely identify a specific observation. 189 189 | |(% style="width:194px" %)/components|(% style="width:454px" %)((( ... ... @@ -191,29 +191,24 @@ 191 191 ))) 192 192 |AttributeDescriptor|(% style="width:194px" %)((( 193 193 Inherits from 194 - 195 195 //ComponentList// 196 196 )))|(% style="width:454px" %)A set metadata concepts that define the Attributes of a Data Structure Definition. 197 197 | |(% style="width:194px" %)/components|(% style="width:454px" %)An association to a Data Attribute component. 198 198 |MeasureDescriptor|(% style="width:194px" %)((( 199 199 Inherits from 200 - 201 201 //ComponentList// 202 202 )))|(% style="width:454px" %)A metadata concept that defines the Measures of a Data Structure Definition. 203 203 | |(% style="width:194px" %)/components|(% style="width:454px" %)An association to a Measure component. 204 204 |//DimensionComponent//|(% style="width:194px" %)((( 205 205 Inherits from 206 - 207 207 //Component// 208 208 209 209 Sub class Dimension 210 - 211 211 TimeDimension 212 212 )))|(% style="width:454px" %)An abstract class representing any Component that can be used for identifying observations. 213 213 | |(% style="width:194px" %)order|(% style="width:454px" %)Specifies the order of the Dimension Components within the DSD. The property is used to indicate the position of the Dimension Component and determines the Key for identifying observations, or series. The Time Dimension, when specified, must be the last within the Dimension Descriptor. 214 214 |Dimension|(% style="width:194px" %)((( 215 215 Inherits from 216 - 217 217 //DimensionComponent// 218 218 )))|(% style="width:454px" %)A metadata concept used (most probably together with other metadata concepts) to classify a statistical series, e.g., a statistical concept indicating a certain economic activity or a geographical reference area. 219 219 | |(% style="width:194px" %)/role|(% style="width:454px" %)Association to the Concept that specifies the role that that the Dimension plays in the Data Structure Definition. ... ... @@ -220,7 +220,6 @@ 220 220 | |(% style="width:194px" %)/conceptIdentity|(% style="width:454px" %)An association to the metadata concept which defines the semantic of the Dimension. 221 221 |TimeDimension|(% style="width:194px" %)((( 222 222 Inherits from 223 - 224 224 //DimensionComponent// 225 225 )))|(% style="width:454px" %)A metadata concept that identifies the component in the key structure that has the role of “time”. 226 226 |DataAttribute|(% style="width:194px" %)((( ... ... @@ -236,7 +236,6 @@ 236 236 | |(% style="width:194px" %)/conceptIdentity|(% style="width:454px" %)An association to the Concept which defines the semantic of the component. 237 237 |Measure|(% style="width:194px" %)((( 238 238 Inherits from 239 - 240 240 //Component// 241 241 )))|(% style="width:454px" %)The metadata concept that is the phenomenon to be measured in a data set. In a data set the instance of the measure is often called the observation. 242 242 | |(% style="width:194px" %)/conceptIdentity|(% style="width:454px" %)An association to the Concept which carries the values of the measures. ... ... @@ -245,11 +245,8 @@ 245 245 | |(% style="width:194px" %)usage|(% style="width:454px" %)Defines whether a Measure must be reported or not. 246 246 |//AttributeRelationship//|(% style="width:194px" %)((( 247 247 Abstract Class 248 - 249 249 Sub classes 250 - 251 251 ObservationRelationship 252 - 253 253 GroupRelationship DimensionRelationshi p 254 254 )))|(% style="width:454px" %)Specifies the type of artefact to which a Data Attribute can be attached in a Data Set. 255 255 |ObservationRelationsh ip|(% style="width:194px" %) |(% style="width:454px" %)The Data Attribute is related to the observations of the Data Set. ... ... @@ -290,10 +290,8 @@ 290 290 291 291 A //DataSet// is formatted as a DataStructureDefinition specific data set (StructureSpecificDataSet). The structured data set is structured according to one specific DataStructureDefinition; hence the latter is required for validation at the syntax level. 292 292 293 -A //DataSet// is a collection of a set of //Observation//s that share the same dimensionality, which is specified by a set of unique components (Dimension, TimeDimension) defined in the 278 +A //DataSet// is a collection of a set of //Observation//s that share the same dimensionality, which is specified by a set of unique components (Dimension, TimeDimension) defined in the DimensionDescriptor of the DataStructureDefinition, together with associated 294 294 295 -DimensionDescriptor of the DataStructureDefinition, together with associated 296 - 297 297 //AttributeValue//s that define specific characteristics about the artefact to which it is attached – //Observation//s, set of Dimensions. It can be structured in terms of a SeriesKey to which //Observation//s are reported. 298 298 299 299 The //Observation// can be the value(s) of the variable(s) being measured for the Concept associated to the Measure(s) in the MeasureDescriptor of the DataStructureDefinition. Each //Observation// associates one or more //ObservationValue//s with a KeyValue (+observationDimension) which is the value for the “Dimension at the Observation Level”. Any Dimension can be specified as being the “Dimension at the Observation Level”, and this specification is made at the level of the //DataSet// (i.e., it must be the same Dimension for the entire //DataSet//).