Could you tell what is the proper way to credit OpenStreetMap in a WFS service? I am planning to start keeping my WFS server solidly up and I would like to have a few OSM datasets in the service. In the beginning they would be the osm_point, osm_line and osm_polygon layers which are the standard PostGIS layers created by osm2pgsql with the hstore option for keeping all the tags. In addition the service would contain some data from the National Land Survey of Finland (NLS). The NLS datasets have a more permissive license than OSM data, NLS open data license which is attrirution only and pretty close to CC-BY.
WFS standard defines the AccessConstraints element in the service metadata and I have sketched to have there a text like +++++++++++++++++++++++++++++++++++++++++++++++++ Access Constraints ================== Contains Map data from OpenStreetMap contributors http://www.openstreetmap.org/ licensed under the Creative Commons Attribution-ShareAlike 2.0 licence (CC-BY-SA) http://creativecommons.org/licenses/by-sa/2.0/ Check also additional OpenStreetMap constraints http://www.openstreetmap.org/copyright? Contains map data from from the National Land Survey of Finland licensed under the NLS open license http://www.maanmittauslaitos.fi/ilmaisetaineistot +++++++++++++++++++++++++++++++++++++++++++++++++ Would this be enought? WFS service metadata can be obtained by doing a GetCapabilities request http://188.64.1.61/cgi-bin/tinyows?service=wfs&version=1.1.0&request=getcapabilities However, it is possible to download data from the service without ever doing the GetCapabilities request by sending http://188.64.1.61/cgi-bin/tinyows?SERVICE=WFS&VERSION=1.1.0&REQUEST=GetFeature&TypeName=osm_point&maxfeatures=20 In this case the OSM data have been imported with osm2pgsql and after that there are not much left in the data to tell that they come originally from OSM. Is it enough to use the standard WFS way and include access constraints in the service metadata where users can read them if they wish or should there be some other means to make it compulsory to read the access constraints before downloading data? -Jukka Rahkonen- _______________________________________________ legal-talk mailing list legal-talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/legal-talk