This Regulation sets out the requirements for technical arrangements for the interoperability and, where practicable, harmonisation of spatial data sets and spatial data services corresponding to the themes listed in Annexes I, II and III to Directive 2007/2/EC.
Article 2
Definitions
For the purpose of this Regulation, the following definitions as well as the theme-specific definitions set out in Annex II shall apply:
1.
‘abstract type’ means a type that cannot be instantiated, but which may have attributes and association roles,
2.
‘association role’ means a value or object, to which a type has a relationship, as referred to in Article 8 (2b) of Directive 2007/2/EC,
3.
‘attribute’ means a characteristic of a type, as referred to in Article 8 (2c) of Directive 2007/2/EC,
4.
‘candidate type’ means a type which is already used as part of the specification of a spatial data theme in Annex I of Directive 2007/2/EC, but which will be fully specified in the spatial data theme in Annex II or III of Directive 2007/2/EC where it thematically belongs,
5.
‘code list’ means an open enumeration that can be extended,
6.
‘data type’ means a descriptor of a set of values that lack identity, in accordance with ISO 19103,
7.
‘enumeration’ means a data type whose instances form a fixed list of named literal values. Attributes of an enumerated type may only take values from this list,
8.
‘external object identifier’ means a unique object identifier which is published by the responsible body, which may be used by external applications to reference the spatial object,
9.
‘identifier’ means a linguistically independent sequence of characters capable of uniquely and permanently identifying that with which it is associated, in accordance with EN ISO 19135,
10.
‘instantiate’ means to create an object that is conformant with the definition, attributes, association roles and constraints specified for the instantiated type,
11.
‘layer’ means a basic unit of geographic information that may be requested as a map from a server in accordance with EN ISO 19128,
12.
‘life-cycle information’ means a set of properties of a spatial object that describe the temporal characteristics of a version of a spatial object or the changes between versions,
13.
‘metadata element’ means a discrete unit of metadata, in accordance with EN ISO 19115,
14.
‘package’ means a general purpose mechanism for organizing elements into groups,
15.
‘register’ means a set of files containing identifiers assigned to items with descriptions of the associated items, in accordance with EN ISO 19135,
16.
‘spatial object type’ means a classification of spatial objects,
17.
‘style’ means a mapping from spatial object types and their properties and constraints to parameterized symbols used in drawing maps,
18.
‘sub-type of’ means a relationship between a more specific type and a more general type, where the more specific type is fully consistent with the more general type and contains additional information, as adapted from ISO 19103,
19.
‘type’ means spatial object type or data type,
20.
‘voidable’ means that, for an attribute or association role a value of ‘void’ may be made available if no corresponding value is contained in the spatial data sets maintained by the Member States or no corresponding value can be derived from existing values at reasonable costs. If an attribute or association role is not voidable, the table cell specifying its voidability is left blank.
Article 3
Common Types
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