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Changes for page 6 Cube

Last modified by Artur on 2025/09/10 11:19
From version 7.1
edited by Artur
on 2025/05/22 14:46
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To version 4.2
edited by Helena
on 2025/05/19 13:50
Change comment: Update document after refactoring.

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1 -Methodology.SDMX 3\.0 Standards\. Section 2\. Information model\: UML conceptual design.WebHome
1 +Methodology.SDMX STANDARDS\: SECTION 2\. INFORMATION MODEL\: UML CONCEPTUAL DESIGN Version 3\.0.WebHome
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1 -xwiki:XWiki.arturkryazhev
1 +xwiki:XWiki.helena
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1 1  == 6.1 Context ==
2 2  
3 -Some statistical systems create views of data based on a “cube” structure. In essence, a cube is an n-dimensional object where the value of each [[dimension>>doc:xwiki:Glossary.Dimension.WebHome]] can be derived from a [[hierarchical code list>>doc:xwiki:Glossary.Hierarchical code list.WebHome]]. The utility of such cube systems is that it is possible to “roll up” or “drill down” each of the [[hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] (% style="color:#e74c3c" %)levels(%%) for each of the [[dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] to specify the (% style="color:#e74c3c" %)level(%%) of granularity required to give a “view” of the data – some [[dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] may be rolled up, others may be drilled down. Such systems give a dynamic view of the data, with aggregated values for rolled up [[dimension>>doc:xwiki:Glossary.Dimension.WebHome]] positions. For example, the individual countries may be rolled up into an economic region such as the EU, or a geographical region such as Europe, whilst another [[dimension>>doc:xwiki:Glossary.Dimension.WebHome]], such as “type of road” may be drilled down to its lower (% style="color:#e74c3c" %)level(%%). The resulting [[measure>>doc:xwiki:Glossary.Measure.WebHome]] (such as “number of accidents”) would then be an aggregation of the value for each individual country for the specific type of road.
3 +Some statistical systems create views of data based on a “cube” structure. In essence, a cube is an n-dimensional object where the value of each [[dimension>>doc:xwiki:Glossary.Dimension.WebHome]] can be derived from a [[hierarchical code list>>doc:xwiki:Glossary.Hierarchical code list.WebHome]]. The utility of such cube systems is that it is possible to “roll up” or “drill down” each of the [[hierarchy>>doc:xwiki:Glossary.Hierarchy.WebHome]] (% style="color:#2ecc71" %)levels(%%) for each of the [[dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] to specify the (% style="color:#2ecc71" %)level(%%) of granularity required to give a “view” of the data – some [[dimensions>>doc:xwiki:Glossary.Dimension.WebHome]] may be rolled up, others may be drilled down. Such systems give a dynamic view of the data, with aggregated values for rolled up [[dimension>>doc:xwiki:Glossary.Dimension.WebHome]] positions. For example, the individual countries may be rolled up into an economic region such as the EU, or a geographical region such as Europe, whilst another [[dimension>>doc:xwiki:Glossary.Dimension.WebHome]], such as “type of road” may be drilled down to its lower (% style="color:#2ecc71" %)level(%%). The resulting [[measure>>doc:xwiki:Glossary.Measure.WebHome]] (such as “number of accidents”) would then be an aggregation of the value for each individual country for the specific type of road.
4 4  
5 5  Such cube systems rely, not on simple [[code lists>>doc:xwiki:Glossary.Code list.WebHome]], but on [[hierarchical code>>doc:xwiki:Glossary.Hierarchical code.WebHome]] sets (see section 8).
6 6  
SUZ.Methodology.Code.MethodologyClass[0]
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