Collaborative mapping applications vary depending on which feature the collaborative edition takes place: on the map itself (shared surface), or on overlays to the map. A very simple collaborative mapping application would just plot users' locations (social mapping or geosocial networking) or Wikipedia articles' locations (Placeopedia). Collaborative implies the possibility of edition by several distinct individuals so the term would tend to exclude applications where the maps are not meant for the general user to modify.
In this kind of application, the map itself is created collaboratively by sharing a common surface. For example, both OpenStreetMap and WikiMapia allow for the creation of single 'points of interest', as well as linear features and areas. Collaborative mapping and specifically surface sharing faces the same problems as revision control, namely concurrent access issues and versioning. In addition to these problems, collaborative maps must deal with the difficult issue of cluttering, due to the geometric constraints inherent in the media. One approach to this problem is using overlays, allowing to suitable use in consumer services. Despite these issues, collaborative mapping platforms such as OpenStreetMap can be considered as being as trustworthy as professionally produced maps
Overlays group together items on a map, allowing the user of the map to toggle the overlay's visibility and thus all items contained in the overlay. The application uses map tiles from a third-party (for example one of the mapping APIs) and adds its own collaboratively edited overlays to them, sometimes in a wiki fashion. If each user's revisions are contained in an overlay, the issue of revision control and cluttering can be mitigated. One example of this is the accessibility platform Accessadvisr, which utilises collaborative mapping to inform persons of accessibility issues, which is perceived to be as reliable and trustworthy as professional information.
Other overlays-based collaborative mapping tools follow a different approach and focus on user centered content creation and experience. There users enrich maps with their own points of interest and build kind of travel books for themselves. At the same time users can explore overlays of other users as collaborative extension.
Some mapping companies offer an online mapping tool that allows private collaboration between users when mapping sensitive data on digital maps, e.g.:
Collaborative mapping is not restricted to the application of mobile devices but if data is captured with a mobile device the satellite navigation (like GPS is helpful to assign the current geolocation to the collected data at the geolocation. Open Source tools like ODK are used to collect the mapping data (e.g. about health care facilities or humanitarian operations) with a survey that could automatically insert the geolocation into the survey data that could include visual information (e.g. images, videos) and audio samples collected at the current geolocation. An image can be used e.g. as additional information of damage assessment after an earth quake.
These sites provide general base map information and allow users to create their own content by marking locations where various events occurred or certain features exist, but aren’t already shown on the base map.
Some examples include 311-style request systems and 3D spatial technology.
The openness for changes to the community is possible for all individuals and the community is validating changes by putting regions and location at their personal watchlist. Any changes in the joint repository of the mapping process are captured by a version control system- Reverting changes is possible and specific quality assured versions of specific areas can be marked as reference map for a specific area (like permanent links in Wikipedia). Quality assurance can be implemented on different scales:
Swift, Mike (June 20, 2010). "Volunteers create new digital maps". Lansing State Journal. MCT News Service. pp. 4E. Retrieved October 31, 2022 – via Newspapers.com. https://www.newspapers.com/clip/112341815/lansing-state-journal/
Goodchild, M.F. (2007). "Citizens as sensors: the world of volunteered geography". GeoJournal. 69 (4): 211–221. CiteSeerX 10.1.1.525.2435. doi:10.1007/s10708-007-9111-y. S2CID 2105836. /wiki/CiteSeerX_(identifier)
Goodchild, M.F. (2007). "Citizens as sensors: the world of volunteered geography". GeoJournal. 69 (4): 211–221. CiteSeerX 10.1.1.525.2435. doi:10.1007/s10708-007-9111-y. S2CID 2105836. /wiki/CiteSeerX_(identifier)
Sangiambut, Suthee; Sieber, Renee (2016-07-12). "The V in VGI: Citizens or Civic Data Sources" (PDF). Urban Planning. 1 (2): 141–154. doi:10.17645/up.v1i2.644. https://www.ssoar.info/ssoar/bitstream/document/54387/1/ssoar-up-2016-2-sangiambut_et_al-The_V_in_VGI_Citizens.pdf
Steiniger, Stefan; Poorazizi, M. Ebrahim; Hunter, Andrew (2016-06-20). "Planning with Citizens: Implementation of an e-Planning Platform and Analysis of Research Needs". Urban Planning. 1 (2): 46–64. doi:10.17645/up.v1i2.607. https://doi.org/10.17645%2Fup.v1i2.607
Elwood, S. (2008). "Volunteered Geographic Information: Future Research Directions Motivated by Critical, Participatory, and Feminist GIS". GeoJournal. 72 (3&4): 173–183. CiteSeerX 10.1.1.464.751. doi:10.1007/s10708-008-9186-0. S2CID 31556791. /wiki/CiteSeerX_(identifier)
Ricker, B., Daniel, S. and Hedley, N. (2014) ‘Fuzzy Boundaries: Hybridizing Location-based Services, Volunteered Geographic Information and Geovisualization Literature’, Geography Compass, 8(7). doi: 10.1111/gec3.12138 https://onlinelibrary.wiley.com/doi/full/10.1111/gec3.12138
Parker, C.J., May, A., Mitchell, V. and Burrows, A. (2013), “Capturing Volunteered Information for Inclusive Service Design: Potential Benefits and Challenges”, The Design Journal, Vol. 16 No. 2, pp. 197–218.
Parker, C.J., May, A.J. and Mitchell, V. (2014), “User Centred Design of Neogeography: The Impact of Volunteered Geographic Information on Trust of Online Map ‘Mashups’”, Ergonomics, Vol. 57 No. 7, pp. 987–997.
May, A.J., Parker, C.J. and Ross, T. (2014), “Evaluating a concept design of a crowd-sourced ‘mashup’ providing ease-of-access information for people with limited mobility”, Transportation Research. Part C: Emerging Technologies, Vol. 49 No. 1, pp. 103–113.
Parker, C.J., May, A.J. and Mitchell, V. (2012), “Understanding Design with VGI using an Information Relevance Framework”, Transactions in GIS, Transactions in GIS: GISRUK Special Issue, Vol. 16 No. 4, pp. 545–560.
Palen, L., Soden, R., Anderson, T. J., & Barrenechea, M. (2015, April). Success & scale in a data-producing organization: The socio-technical evolution of OpenStreetMap in response to humanitarian events. In Proceedings of the 33rd annual ACM conference on human factors in computing systems (pp. 4113–4122). ACM.
Curran, K., Crumlish, J., & Fisher, G. (2013). OpenStreetMap. In Geographic Information Systems: Concepts, Methodologies, Tools, and Applications (pp. 540–549). IGI Global.
HOT – Humanitarian OpenStreetMap Team – Web portal: https://www.hotosm.org/ (accessed 2017/08/14) https://www.hotosm.org/
Haklay, M., & Weber, P. (2008). Openstreetmap: User-generated street maps. IEEE Pervasive Computing, 7(4), 12–18.
HOT Metropolitan Map for Managua – accessed (2017/08/14) HOT-project information – Project: http://support.mapanica.net Archived 2017-11-19 at the Wayback Machine https://www.hotosm.org/projects/public_transportation_map_for_managua
"Humanitarian OpenStreetMap Team | Infectious diseases: Malaria elimination". 8 February 2017. https://www.hotosm.org/projects/malaria_elimination_campaign
Soden, R., & Palen, L. (2014). From crowdsourced mapping to community mapping: The post-earthquake work of OpenStreetMap Haiti. In COOP 2014-Proceedings of the 11th International Conference on the Design of Cooperative Systems, 27–30 May 2014, Nice (France) (pp. 311–326). Springer, Cham.
"Typhoon Haiyan - OpenStreetMap Wiki". wiki.openstreetmap.org. Retrieved 2019-02-24. https://wiki.openstreetmap.org/wiki/Typhoon_Haiyan
Michael, Nathan, et al. "Collaborative mapping of an earthquake‐damaged building via ground and aerial robots." Journal of Field Robotics 29.5 (2012): 832-841. https://pdfs.semanticscholar.org/fc92/2cabc43fafea6669c94a403ff4e7892c5328.pdf
Mohanarajah, Gajamohan, et al. "Cloud-based collaborative 3D mapping in real-time with low-cost robots." IEEE Transactions on Automation Science and Engineering 12.2 (2015): 423-431. http://rapyuta.org/_media/mohtase14-2.pdf
Butler, Patrick (2014-04-10). "Collaborative mapping | Collaborative mapping". Espatial.com. Retrieved 2016-01-15. https://www.espatial.com/articles/collaborative-mapping-adding-users-or-groups
Boella, G., Francis, L., Grassi, E., Kistner, A., Nitsche, A., Noskov, A., ... & Tsampoulatidis, I. (2018, April). Wegovnow: a map based platform to engage the local civic society. In Companion of The Web Conference 2018 on The Web Conference 2018 (pp. 1215-1219). International World Wide Web Conferences Steering Committee.
"Private local collaboration via maps | collaborative mapping platform", uebermaps.com, 2017-03-24, retrieved 2017-03-24 https://uebermaps.com
"Canvis.app | Case Studies - Infrastructure Planning". about.canvis.app. Retrieved 2019-08-30. https://about.canvis.app/en/guide/case-studies/infrastructure-planning/
Flanagin, A. J.; Metzger, M. J. (2008). "The credibility of volunteered geographic information". GeoJournal. 72 (3–4): 137–148. doi:10.1007/s10708-008-9188-y. S2CID 15975229. /wiki/Doi_(identifier)
Ballatore, A. (2014). "Defacing the map: Cartographic vandalism in the digital commons". The Cartographic Journal. 51 (3): 214–224. arXiv:1404.3341. Bibcode:2014CartJ..51..214B. doi:10.1179/1743277414Y.0000000085. S2CID 1828882. /wiki/ArXiv_(identifier)
Barrington, L., Ghosh, S., Greene, M., Har-Noy, S., Berger, J., Gill, S., Lin, A.Y.M., Huyck, C., 2011. Crowdsourcing earthquake damage assessment using remote sensing imagery. Annals of Geophysics 54, 680-687
Lu, Qing; Johnson, Peter (2016-06-07). "Characterizing New Channels of Communication: A Case Study of Municipal 311 Requests in Edmonton, Canada". Urban Planning. 1 (2): 18–31. doi:10.17645/up.v1i2.621. hdl:10012/11064. https://doi.org/10.17645%2Fup.v1i2.621
Sabri, Soheil; Rajabifard, Abbas; Ho, Serene; Amirebrahimi, Sam; Bishop, Ian (2016-06-15). "Leveraging VGI Integrated with 3D Spatial Technology to Support Urban Intensification in Melbourne, Australia". Urban Planning. 1 (2): 32–48. doi:10.17645/up.v1i2.623. https://doi.org/10.17645%2Fup.v1i2.623
Brambilla, G., Amoretti, M., & Zanichelli, F. (2016). Using blockchain for peer-to-peer proof-of-location. arXiv preprint arXiv:1607.00174.
Merkle, R. C. (1989, August). A certified digital signature. In Conference on the Theory and Application of Cryptology (pp. 218-238). Springer, New York, NY.