1. IDENTIFICATION
The following metadata elements shall be provided:
1.1. Resource title
This a characteristic, and often unique, name by which the resource is known.
The value domain of this metadata element is free text.
1.2. Resource abstract
This is a brief narrative summary of the content of the resource.
The value domain of this metadata element is free text.
1.3. Resource type
This is the type of resource being described by the metadata.
The value domain of this metadata element is defined in Part D.1.
1.4. Resource locator
The resource locator defines the link(s) to the resource and/or the link to additional information about the resource.
The value domain of this metadata element is a character string, commonly expressed as uniform resource locator (URL).
1.5. Unique resource identifier
A value uniquely identifying the resource.
The value domain of this metadata element is a mandatory character string code, generally assigned by the data owner, and a character string namespace uniquely identifying the context of the identifier code (for example, the data owner).
1.6. Coupled resource
If the resource is a spatial data service, this metadata element identifies, where relevant, the target spatial data set(s) of the service through their unique resource identifiers (URI).
The value domain of this metadata element is a mandatory character string code, generally assigned by the data owner, and a character string namespace uniquely identifying the context of the identifier code (for example, the data owner).
1.7. Resource language
The language(s) used within the resource.
The value domain of this metadata element is limited to the languages defined in ISO 639-2.
2. CLASSIFICATION OF SPATIAL DATA AND SERVICES
2.1. Topic category
The topic category is a high-level classification scheme to assist in the grouping and topic-based search of available spatial data resources.
The value domain of this metadata element is defined in Part D.2.
2.2. Spatial data service type
This is a classification to assist in the search of available spatial data services. A specific service shall be categorised in only one category.
The value domain of this metadata element is defined in Part D.3.
3. KEYWORD
If the resource is a spatial data service, at least one keyword from Part D.4 shall be provided.
If a resource is a spatial data set or spatial data set series, at least one keyword shall be provided from the general environmental multilingual thesaurus (GEMET) describing the relevant spatial data theme as defined in Annex I, II or III to Directive 2007/2/EC.
For each keyword, the following metadata elements shall be provided:
3.1. Keyword value
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