Wille Marcel Lima Malheiro

Protecting OpenStreetMap is a continuous process performed by Mapbox to secure maps from displaying erroneous edits. Any edits that raise suspicion are flagged in OSMCha, an open service that allows to check low-quality changes that are made by the members of the OSM project in a shared database. This not only helps to report our findings to the community but examine them in aggregate and draw conclusions to improve our data quality processes.

It is important that the reviewer has the necessary information about the changeset and understand the diff of modifications in the OSM data. For this purpose, OSMCha offers an interface similar to OpenStreetMap but with additional tools such as changeset-map to visualise the edits, information about the mapper, other information related to the changeset and OSM user history that can help the reviewer identify problematic edits on OSM. During this workshop the following aspects of work with OSMCha will be highlighted: - the basic principles of work with the interface, - analysing data on the map view - flagging changesets as `bad` or `good` with varying levels of severity - getting information about changeset, data and contributor - the possibility of filtering out the data in a granular approach that helps to limit the amount of information about changes in OSM, in terms of - contributors, where you can pick up the data for a particular mapper(s) or mapping teams - the date range, you can limit a number of changesets by the dates of submission to OSM and by the dates when they were reviewd in OSMCha - the reasons for suspicion, OSMCha has a range of internal functions that assign different reason for suspicion to changeset that you can use for reviews - area, where you can set up area of interest for edits inspection The main goal of the workshop is to engage the community to evaluate the existing data using OSMCha and improve its quality.

Other people: Andrey Golovin

The Tasking Manager is OpenStreetMap’s most used software tool to organize mapathons, community mapping initiatives and professional mapping teams. Over the last year it has been developed further significantly. This talk will give an update on the newest developments and the emerging community around the application.

The Tasking Manager is OpenStreetMap’s most used software tool to organize mapathons, community mapping initiatives and professional mapping teams. Over the last year it has been further developed significantly. This talk will give an update on the newest developments and the emerging community around the application. Based on tales of data storytelling representatives of the development team of the Tasking Manager are going to discover remarkable curiosities and insights out of a wider application and user analysis, of course backed by hard stats. From this starting point we explain the solutions we implemented in Tasking Manager in the last year to improve the user experience and increase the data quality by mappers using the tool. Three stories will be told, about group of users that are coming to the Tasking Manager frequently and how the changes affected their flow. New mappers, validators and project creators are the main actors of the exciting adventures of combating a low beginners retention rate, lifting data relicts, guiding a mapper through the labyrinth of OSM contribution and learning about the magic of people’s using technology to achieve what they want. We will talk about the new ingredients of the Tasking Manager, from the redesign of the users interface and the interaction among them, to how it now fits into a wider spectrum with much more applications of the OpenStreetMap ecosystem in order to improve direct access to more efficient mapping and data validation.

Other people: Felix Delattre Ramya Ragupathy