To whom it may concern,
Ive been working on an atlas of languages spoken in Angola for a couple years on and off now and am nearing completion of it. Some colleagues and I are wanting to make sure Im using the correct and proper attribution for OSM data on the maps. And also want to check again that Im using the OSM data in the right way regarding copyright rules. Ive started with SIL copyrighted language polygons which have been updated using geographic data from worldgeodatasets.com data that SIL acquired a couple of years ago. So to make it clear, the SIL polygons have not been updated based off of any OSM data or in reference to any OSM data. Ive used administrative boundary lines from a couple sources, primarily from Stanford digital repository data which is in the public domain and updated those a bit using ESRI satellite imagery on my ArcGIS desktop platform. According to conversations our mapping group has had with ESRI we have permission to do that using ESRI satellite imagery with appropriate accreditation. Ive used OSM layers which I downloaded as shapefiles and subsequently did update some of the road and rivers layers only based on ESRI satellite imagery; again on my ArcMap desktop platform. As far as I can tell, ESRI satellite imagery is an approved source of OSM updates since 2017. The OSM layers that Im planning on using are for roads, rivers, lakes and forest areas. The lakes and forest areas are unchanged selections for the country. The roads and rivers layers are selections which have been edited/improved using ESRI satellite imagery. I plan to have these shapefiles of OSM data available upon request per the copyright rules. When I have time, Id like to update the OSM database itself with my updates if they are more detailed and accurate than the existing lines. Just not sure when Ill have the time to do that. J I used place names and locations from worldgeodatasets.com and went through a long process of getting all the names and spellings and locations just right via my work colleague who has contacts in the Angolan government in country who gave us the information. So I have a couple questions. 1. As far as I can tell from the copyright statement and use cases this is a produced work and SIL International, Map Maker, Ltd. And worldgeodatasets.com will retain their copyright for their parts of the produced work(overall map design, language polygons, admin boundaries and places), and OSM will retain their copyright for their parts of the produced work(roads, rivers, lakes and forests). This is because the rest of the other data wasnt derived from any of the OSM data. Also the OSM data doesnt interact with the other data as it doesnt follow the same lines as the other data. That is especially clear where admin boundary lines and coincident language boundary lines do not exactly match OSM river lines. I also chose to generalize the admin boundary lines and language boundary lines a bit for artistic purposes based on the scale at a province level. Does this seem correct in this case? Ive included a draft province map for reference to make it clear how Im using the different layers. The main thing Im wanting to make sure of is that SIL and worldgeodatasets.com will retain their copyrights for the language polygons and places in the country and not be required to be freely distributed under any of the OSM copyright terms or policies. 2. Is the following attribution correct specifically for the OSM data that I will use? Note that the publication will be in Portuguese. So Ive translated everything that I felt pertinent into Portuguese. Is that appropriate, or are there parts of it or all of the OSM attribution that should or need to be in English? Ive been planning on putting this attribution on each of the 17 province maps and a country overview map. Is that necessary to put the attribution on each map, or do I only need to include it in the front matter of the atlas, as the plan is to have all the maps together in the publication? Perhaps there is a more descriptive OSM attribution that could be included in the front matter, and a more simple or streamlined attribution on the individual maps? At first I had down © OpenStreetMap contribuidores CC-BY-SA (2020), however my colleague suggested CC-BY-SA would be better to be replaced by the newer license ODbL. And Im not actually sure I need to include CC-BY-SA or ODbL as Im not using tiles, just selections of OSM shapefiles. Overall I just want to make sure Im correctly attributing the OSM layers. Also, a colleague specifically asked if the copyright symbol needs to be included in the attribution for OSM data or if it could be taken out as he says data cant be copyrighted. © 2020 SIL International®, Todos os direitos reservados; Limites administrativos: Limites e Lugares Mundiais pela ESRI (2019) e Map Maker, Ltd. (2007); Limites municipais, Angola, 2007 Map Maker, Ltd. Disponível em: http://purl.stanford.edu/td535nm8341; Estradas, rios, lagos e florestas: © OpenStreetMap contribuidores ODbL (2020); Llugares: Inclui geodados do worldgeodatasets.com (2020). 3. Im planning on having the OSM shapefiles available upon request. Since the publication will be in printed form as an atlas, Im thinking of including my personal e-mail or perhaps and/or the e-mail of the Angolan government representative or department in the front matter of the atlas as the way to contact me and/or them and request the OSM shapefiles. Is that OK? If I have the time to update open street map itself with my edits, or at least the edits I feel add value and are more detailed or more accurate and then refer people to updated OSM shapefiles for the country would that suffice for providing the data without having to also send the shapefiles Im using for the map as they are? Im not sure replacing all of my edits would be the best idea as in some places I edited for simplicity and included long stretches of road based on satellite imagery which were continuous lines vs the often more detailed OSM short segments. I also didnt add or edit any metadata to any new or edited lines. So metadata would need to be added/updated when putting directly into the OSM database. Im more than happy to send anyone the shapefiles, Im just thinking long term 20-30 years down the road e-mails may change and it might get difficult get new contact information out or ensure people have access to the shapefiles. I can send a pdf of a sample map I intend to use if anyone would like to see it. But the file is 2MB so I cant include it here. Thanks, Marcus Love Mapping specialist Africa area Analytics and Information Management (AIM) SIL International
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