Temporal Extent (mcp:EX_TemporalExtent)¶
Rationale¶
ISO19115 has a temporal extent to describe a time period which is most often applied to the resource or subject of the metadata record. However, the temporal extent does not include a description of the temporal currency or aggregation in use. The intention of these new classes is to fill this gap.
UML¶
UML Diagram of extended EX_TemporalExtent class
Data Dictionary¶
This table makes use of lines 350-351 from table B.3.1.2 (Temporal extent information) in the ISO19115 standard. Lines 920 onwards are new elements from the MCP.
No. | Name/Role Name | Definition | Condition/ Obligation | Max. Occurrence | Data Type | Domain |
---|---|---|---|---|---|---|
350 | EX_TemporalExtent | Time period covered by the content of the dataset or metadata subject | Note 1 | Note 2 | Aggregated Class (EX_Extent) | Lines 351 & 920-921 |
351 | extent | Date and time for the content of the dataset or metadata subject | M | 1 | Class | TM_Primitive (B.4.5) |
920 | currency | Temporal currency for the dataset or metadata subject | O | 1 | Class | MD_CurrencyTypeCode <<CodeList>> |
921 | temporalAggregation | Temporal aggregation for the dataset or metadata subject | O | 1 | Class | MD_TemporalAggregationUnitCode <<CodeList> |
Obligation / Condition Key
- Note 1 - Use obligation from referencing object
- Note 2 - Use maximum occurence from referencing object
- M - Mandatory
- O - Optional
- C - Conditional
XML Example¶
An XML fragment showing an example of the mcp:EX_TemporalExtent element.
<gmd:temporalElement>
<mcp:EX_TemporalExtent gco:isoType="gmd:EX_TemporalExtent">
<gmd:extent>
<gml:TimePeriod gml:id="N10315">
<gml:begin>
<gml:TimeInstant gml:id="N1031B">
<gml:timePosition>2012-01-01T00:45:00</gml:timePosition>
</gml:TimeInstant>
</gml:begin>
<gml:end>
<gml:TimeInstant gml:id="N10326">
<gml:timePosition>2012-01-28T03:30:00</gml:timePosition>
</gml:TimeInstant>
</gml:end>
</gml:TimePeriod>
</gmd:extent>
<mcp:currency>
<mcp:MD_CurrencyTypeCode
codeList="http://bluenet3.antcrc.utas.edu.au/mcp-1.4/resources/Codelist/gmxCodelists.xml
#MD_CurrencyTypeCode"
codeListValue="historical">historical</mcp:MD_CurrencyTypeCode>
</mcp:currency>
<mcp:temporalAggregation>
<mcp:MD_TemporalAggregationUnitCode
codeList="http://bluenet3.antcrc.utas.edu.au/mcp-1.4/resources/Codelist/gmxCodelists.xml
#MD_TemporalAggregationUnitCode"
codeListValue="week">week</mcp:MD_TemporalAggregationUnitCode>
</mcp:temporalAggregation>
</mcp:EX_TemporalExtent>
</gmd:temporalElement>
Metadata about this element¶
- Proposer: AODCJF Technical Committee
- Date proposed: 2006
- Date accepted by MCP Governance Committee: 2010
- MCP Version: 1.2 onwards