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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>To whom it may concern,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> I work with SIL International keeping language maps for the Ethnologue up-to-date for countries in Africa. We are in the process of making a series of language maps by province in Angola in coordination with the government of Angola. We are considering using OSM as a background for our maps. In a way this is a test for us to see how using OSM could work as a basemap for a future dynamic online map with all of our language polygons around the world. As far as I’m aware, it shouldn’t be a problem to use OSM as a background with our own surveyed language data overlaying it. As long as we give proper credit to OSM. In that case, it would be a ‘collective database’. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> The issue that we do have though, is portraying accurate administrative boundaries. For the most part, and currently in Angola, we use boundaries derived from old DCW data, which isn’t the most accurate. Often language boundaries coincide with administrative boundaries, so having accurate boundaries is important. I was thinking, that if I use OSM as a background, that I could edit the language polygons that we have to follow along OSM admin boundaries where they coincide. However, if I do that, would it then make those polygons that I’ve edited a ‘derivative database’? If so, then I think we can’t do that, as we would need to retain the copyright, so that others wouldn’t be free to change the polygons themselves.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> If that isn’t possible to adapt our language polygons to OSM admin boundaries without it becoming a derivative database, then we would use another source for the admin boundaries. Is it possible to use an OSM background and turn off/toggle the admin boundaries for the basemap? Otherwise, we will have language boundaries which will be slightly off the OSM admin boundaries, and wouldn’t look that great and might be confusing on the map.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>Marcus Love<o:p></o:p></span></p><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Helvetica","sans-serif";color:black'>Mapping Specialist – Africa area</span><span style='font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal style='background:white'><span lang=EN-GB style='font-family:"Helvetica","sans-serif";color:black'>AIM Mapping Information Services<br>SIL International</span><span style='font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>