Taking the opportunity of available technology and smartphones, UN-Habitat's Global Public Space Programme uses an open source application (KoboToolbox) to collect public space-related data on the neighbourhood, but also at the citywide level. This data collection process follows a few basic steps. First, a map of all the open spaces is prepared, in which satellite images are used to identify the open public spaces, markets, and public facilities. Thereafter, local data collectors are trained on the use of the open source application for data collection. Each assessment is then uploaded onto the server to be further analysed.