| Object | Group | Definition | Explanatory Text | Link to GSIM |
| Dimension | Data Structure Definition and Dataset | Statistical concept used in combination with other statistical concepts to identify a statistical series or individual observations. | In SDMX, “dimension” is a statistical concept used (most probably together with other statistical concepts) to identify a series, e.g. a statistical concept indicating a particular economic activity or a geographical reference area. | Identifier Component (only for dimensional data) |