52N Conflation WPS OGC Testbed 12 | OGC

Copyright © 2014 Open Geospatial Consortium. 21 ฀ 52 North and its affiliates Benjamin are agents related with the 52 North conflation execution. Concretely, Benjamin has developed the algorithm and acts on behalf of 52 North: f2n:52north a prov:Agent ; f2n:benjamin a prov:Agent ; f2n:benjamin prov:actedOnBehalfOf f2n:52north ; f2n:52N_ConflationAlgorithm_v1 prov:wasAttributedTo f2n:benjamin . Figure 10 — Conflation algorithm attribution

7.3 WPS Execution User

This is the user layer layer 3, where the person or the agent who executed the process in this example in the NGA organization is defined. ฀ The user David, in this case is an agent it is affiliated to NGA which is associated with the execution of a 52 North conflation processes to create the conflated map. nga:NGA a prov:Agent ; nga:david a prov:Agent ; nga:david prov:actedOnBehalfOf nga:NGA . 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 .