Copyright © 2014 Open Geospatial Consortium.
23 The attribute level is also represented by entities. Concretely, in this example, the
process conflates positions subClassOf ows:Line and addresses non- geographical property; both properties of the Features subClassOf
ows:Property.
usgs:USGS_Position rdfs:subClassOf ows:Line . osm:OSM_Position rdfs:subClassOf ows:Line .
usgs:USGS_Address rdfs:subClassOf ows:Property . osm:OSM_Address rdfs:subClassOf ows:Property .
The result of the conflation process is a conflated map which is a revision of the USGS map.
usgs_conf:conflatedMap prov:wasRevisionOf usgs:USGSMap .
Figure 12 — Dataset conflated map inputs diagram.
7.5 Conflated Step
In the conflation use case, the user is supervising the conflation steps that involve a set of a few features. For each step, we are documenting the features and the attributes
participating in it layer 5.
7.5.1 Defining the process step
Process step number 20140305 runs a conflation processes in this case we use the date as an identifier.
f2n:52N_ConflationExecution20140305 a f2n:52N_WPSConflationExecution .
The individual execution uses a plan that was executed by David as a client. The process execution started at 2014-03-03 08:10 and ended at 2014-03-03 10:20.
f2n:52N_ConflationExecution20140305 prov:used f2n:52N_ConflationAlgorithm_v1 .
f2n:52N_ConflationExecution20140305 prov:qualifiedUsage [ a prov:Usage ;
24
Copyright © 2014 Open Geospatial Consortium. prov:hadPlan f2n:52N_ConflationAlgorithm_v1 ;
prov:hadRole nga:Client ] .
f2n:52N_ConflationExecution20140305 prov:startedAtTime 2014-03- 03T08:10:00xsd:dateTime ;
prov:endedAtTime 2014-03-05T10:20:00xsd:dateTime .
Figure 13 — Conflation execution is defined by the use of the 52N algoritm and the date.
7.5.2 Defining the features and describing their respective data model
In this process step, one feature example and the properties of the first source dataset are involved, so they have to be defined. The same for the other features
and properties.
usgs:USGS_Feature1 a usgs:USGS_Feature . usgs:USGS_Position1 a usgs:USGS_Position .
usgs:USGS_Address1 a usgs:USGS_Address . usgs:USGS_Feature1 ows:hadGeometry usgs:USGS_Position1;
ows:hadProperty usgs:USGS_Address1 .
The same for the second source dataset.
osm:OSM_Feature1 a osm:OSM_Feature . osm:OSM_Position1 a osm:OSM_Position .
osm:OSM_Address1 a osm:OSM_Address . osm:OSM_Feature1 ows:hadGeometry osm:OSM_Position1;
ows:hadProperty osm:OSM_Address1 .
The same for the target dataset note that the target dataset follows the first source data model.
usgs_conf:conflated_Feature1 a usgs:USGS_Feature . usgs_conf:conflated_Position1 a usgs:USGS_Position .
usgs_conf:conflated_Address1 a usgs:USGS_Address . usgs_conf:conflated_Feature1 ows:hadGeometry osm:OSM_Position1;
ows:hadProperty osm:OSM_Address1 .
