An Ontology for Decision-Making Support in Air Traffic Management
461
Fig. 1. Temporal ontology
3.2 Spatial Ontology
Spatial ontology depicts the relationship of objects in space. The spatial relationship of objects can be described by the region connection calculus (RCC).
RCC aims at qualitative spatial representation and reasoning. In a Euclidean
or topological space, RCC8 enumerates eight possible relations that may exist
between two regions, as depicted in Fig. 2.
Fig. 2. Spatial ontology
By defining the temporal and spatial relations of 4D trajectories and thunderstorms, we can tell if a route point in a 4D trajectory is covered by a thunderstorm at some time.
461
Fig. 1. Temporal ontology
3.2 Spatial Ontology
Spatial ontology depicts the relationship of objects in space. The spatial relationship of objects can be described by the region connection calculus (RCC).
RCC aims at qualitative spatial representation and reasoning. In a Euclidean
or topological space, RCC8 enumerates eight possible relations that may exist
between two regions, as depicted in Fig. 2.
Fig. 2. Spatial ontology
By defining the temporal and spatial relations of 4D trajectories and thunderstorms, we can tell if a route point in a 4D trajectory is covered by a thunderstorm at some time.