Each ICAO data set shall be provided together with metadata giving the validity of the data set.
Requirement |
Reference |
DS-META-003 |
|
|
|
Element Name |
Validity of the data set |
|
|
|
Obligation / Condition |
Mandatory |
|
|
|
Multiplicity |
1 |
|
|
ISO 19115 (2003) |
Number |
351 |
|
|
|
Name |
extent |
|
|
|
Definition |
Date and time for the content of the dataset |
|
|
|
XPath |
gmd:MD_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:temporalElement/gmd:EX_TemporalExtent/gmd:extent/gml:TimePeriod |
|
|
|
Data type |
TM_Primitive |
|
|
|
Domain |
Date described according to ISO 19108 |
|
|
|
Example |
From: 2010-11-01T00:00:00Z |
|
|
Implementing Instructions |
|
|
When the end date is unknown follow the usual AIXM encoding instructions (use indeterminatePosition="unknown" for the end of validity). |
|
Example 1: End Date is Known
<gmd:MD_Metadata>
...
<gmd:identificationInfo>
<gmd:MD_DataIdentification>
...
<gmd:extent>
<gmd:EX_Extent>
<gmd:temporalElement>
<gmd:EX_TemporalExtent>
<gmd:extent>
<gml:TimePeriod gml:id="period1">
<gml:beginPosition>2010-11-01T00:00:00Z</gml:beginPosition>
<gml:endPosition>2010-12-24T24:00:00Z</gml:endPosition>
</gml:TimePeriod>
</gmd:extent>
</gmd:EX_TemporalExtent>
</gmd:temporalElement>
</gmd:EX_Extent>
</gmd:extent>
</gmd:MD_DataIdentification>
</gmd:identificationInfo>
...
</gmd:MD_Metadata>
Example 2: End Date is Unknown
<gmd:MD_Metadata>
...
<gmd:identificationInfo>
<gmd:MD_DataIdentification>
<gmd:extent>
<gmd:EX_Extent>
<gmd:temporalElement>
<gmd:EX_TemporalExtent>
<gmd:extent>
<gml:TimePeriod gml:id="period1">
<gml:beginPosition>2010-11-01T00:00:00Z</gml:beginPosition>
<gml:endPosition indeterminatePosition="unknown"/>
</gml:TimePeriod>
</gmd:extent>
</gmd:EX_TemporalExtent>
</gmd:temporalElement>
</gmd:EX_Extent>
</gmd:extent>
</gmd:MD_DataIdentification>
</gmd:identificationInfo>
...
</gmd:MD_Metadata>