If for a Dataset [Dataset] any temporal information is available, the following formats should be added, if not available:
- Set dct:issued for the Dataset
- Set dct:modified for the Dataset
If these temporal information is available in related Distributions, but not in the Dataset, it has to be checked if the information can be copied.
Regarding the format to use, it has to be [Dataset]:
- rdfs:Literal
- encoded using the relevant ISO 8601 Date and Time compliant string [ISO8601]
- typed using the appropriate XML Schema datatype [xmlschema-2]
- Example from [Dataset]:
"2011-12-05"^^xsd:date
Additionally, and especially if not all information is available (e.g. only year), it has to be checked, if information in the following types can be made available. One soulution is to provide 3 triples for every predicate:
- xsd:gYear | Gregorian calendar year
- xsd:gMonth | Gregorian calendar month
- xsd:gDay | Gregorian calendar day of the month
A better way would be to choose the predicate type which is appropriate for the available information: [Datatypes]
- xsd:gYear | Gregorian calendar year
- xsd:gYearMonth | Gregorian calendar year and month
- xsd:date | Dates (yyyy-mm-dd) with or without timezone
Resources:
If for a Dataset [Dataset] any temporal information is available, the following formats should be added, if not available:
If these temporal information is available in related Distributions, but not in the Dataset, it has to be checked if the information can be copied.
Regarding the format to use, it has to be [Dataset]:
"2011-12-05"^^xsd:dateAdditionally, and especially if not all information is available (e.g. only year), it has to be checked, if information in the following types can be made available. One soulution is to provide 3 triples for every predicate:
A better way would be to choose the predicate type which is appropriate for the available information: [Datatypes]
Resources: