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OpenStreetMap (OSM) is a well-known crowdsourcing project which aims to create a geospatial database of the whole world. Intrinsic approaches based on the analysis of the history of data, i.e. its evolution over time, have become an established way to assess OSM quality. After a comprehensive review of scientific as well as software applications focused on the visualization, analysis and processing of OSM history, the paper presents “Is OSM up-to-date?”, an open source web application addressing the need of OSM contributors, community leaders and researchers to quickly assess OSM intrinsic quality based on the object history for any specific region. The software, mainly written in Python, can be also run in the command line or inside a Docker container. The technical architecture, sample applications and future developments of the software are also presented in the paper.

OpenStreetMap history for intrinsic quality assessment: Is OSM up-to-date?