| Tip | ||
|---|---|---|
| ||
Each ICAO data set shall be provided together with metadata giving the validity of the data set |
The start of the validity of the data set is based on the "effective date" of its data. Although this is may be an AIRAC date, it can be any date. This is particularly true for obstacle data sets that do not need to follow AIRAC.
The end of the validity of the data set is based on the date and time when the first data ceases to have effect. In many cases this will be at an indeterminate time in the future.
The validity of the data set is different from the date and time when the data set is provided but is not yet effective (DS-META-002 - Date and time when provided).
More information on baseline data and updates is available at Data set variants.
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). | ||
| Code Block |
|---|
...
|
...
|
...
| |
<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> |
...
| Code Block |
|---|
...
|
...
|
...
|
...
| |
<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> |