WPS Execution User OGC Testbed 12 | OGC

22 Copyright © 2014 Open Geospatial Consortium. Figure 11 — NGA Agent levels

7.4 Conflated Map

This layer defines the precise inputs and outputs of the conflation session: 3 maps that are going to be conflated dataset level and a distance. As part of the definition of the dataset, generic features and attributes feature and attribute types are also defined. ฀ Three namespaces are defined; one for each dataset involved in the conflation process: prefix usgs: http:www.opengis.netogcows10usgs_dataset . prefix osm: http:www.opengis.netogcows10osm_dataset . prefix usgs_conf: http:www.opengis.netogcusgs_conf-dataset . ฀ There are three feature collections Datasets involved on the conflation process. usgs:USGSMap a ows:FeatureCollection; osm:OSMMap a ows:FeatureCollection; usgs_conf:conflatedMap a ows:FeatureCollection . ฀ Additionally, a distance is also defined values of it will be used as a threshold in the conflation step. ows10:Distance rdfs:subClassOf ows:WPSParameter . NOTE: To be rigorous, the distance concept has to be defined in a different namespace e.g. in an OM namespace as it is not part of the WPS conflation profile definition. ฀ At feature level, two feature types are involved on the conflation process subClassOf ows:feature-please remember that in this use case the output features share the same feature type as the usgs map reference map-. usgs:USGS_Feature rdfs:subClassOf ows:Feature . osm:USGS_Feature rdfs:subClassOf ows:Feature . 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 ;