On Sat, Dec 12, 2009 at 6:30 PM, 80n <80n...@gmail.com> wrote: > On Sat, Dec 12, 2009 at 4:13 PM, Matt Amos <zerebub...@gmail.com> wrote: >> On Sat, Dec 12, 2009 at 3:43 PM, 80n <80n...@gmail.com> wrote: >> > What kind of duck test can you use to be sure that a derived database is >> > involved in the process? >> >> if you suspect that someone is using a derived database, and isn't >> making an offer of it, you are suspecting that they are in breach of >> the ODbL. this can be tested by asking the company and, if they don't >> provide a satisfactory response, legal proceedings could follow. >> > Exactly. On what grounds would you suspect that either company was using a > derived database?
by whatever grounds you'd suspect that a company was providing services based on AGPL software, or distributing a binary incorporating GPL software - gut instinct ;-) let's assume it's known that this company is definitely using OSM data - determining that can be difficult, depending on exactly what it is they're doing with the data. in general, it's very difficult to do anything directly from the planet file alone, so i'd suspect that any company doing anything with OSM data has a derived database of some kind and, if there's no offer evident on their site, i'd contact them about it. it's a similar situation to looking at a site and thinking they're using OSM data to render a map, without respecting the license. it's entirely possible that they have some other data source, or have collected the data themselves. so it's a gut instinct whether or not you think any of the data has come from OSM and should be followed up. cheers, matt _______________________________________________ legal-talk mailing list legal-talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/legal-talk
