SMASH is a userfriendly and intuitive mobile application for digital field mapping developed to support the work of technicians in the field, offering a mapping environment with real time GPS position and the possibility to take georeferenced notes and pictures. Furthermore, the app provides a powerful support for structured data collection based on customized forms. Forms may contain combo and check boxes, text fields and pictures organized over multiple tabs. Background data on the map view can be personalized using available local data or on-line services with the possibility to use vector offline Mapsforge basemaps, shapefile, Geopackage, PostGIS or GPX offline data. Vector layers can be visualized in the map view with a custom style based on the SLD standard definitions. Raster layers can be in Geopackage, tiff+png+jpg with wtf, and Mbtiles offline databases, or as a WMS/TMS online service.

Desktop applications from the HortonMachine project support preparation of the base raster data to load into Smash, preparation of overlay vector layers, design of forms, visualization and export into geopackage or shapefile format of the data collected in the field (GPS tracks, text notes, pictures and form based notes).
The workshop starts with an introduction of the application, installation and description of the main features. Then a short section is dedicated to the preparation of the input data: background maps and forms. The user can test the application directly on her/his device depending on the GPS signal. Finally the export of the collected data is handled using the data of the user or a common dataset provided in the course material. The collected data can then be visualized or used directly in a GIS environment using everyone’s preferred GIS.
The final part is dedicated to the centralized survey server and how to connect SMASH to synchronize incrementally a survey and view its history.