46
2 Geomatics standards
Meta-model
Realwo~
discourse
.~.
defined in
provides concepts for describing
Conceptual model
Conceptual fonnalism
fonnally represented in
1 basis for
one ormore
Conceptual schema
Conceptual schema
language
provides formallanguage
Application-model
ApplicationSchema
ReferenceModeI
SpatialObjectType
DataQualityOverviewElement
DataQualityElement
Feature
I
Data-model
Refers to
References
MetadataDataset I
I
Provides
Defines
I GeographiclnformationService! metadata for
content cf
I Operates on
Dataset
I
I
I F eaturelnstance
SpatialObject
Position
Describes spatial
Describes
aspects of
IDeation of
Fig. 2.5. Conceptua\ modelling and domain reference model (IS034 2002)