Development of an open-source web-gis

The aim of this study submitted as a master's thesis is to develop a Web based GIS environment at Hacettepe University using open source software and tools. Within the scope of the thesis, availability and functionality of open source GIS software have been investigated, a system prototype has been designed and a Web based GIS application has been implemented with selected components. In order to collect test data and create a Volunteer Geographical Information (VGI) application at the same time, a mobile app on Android operating system has been implemented. The app can collect user's experience on earthquakes after their occurence together with the location information (geographical coordinates), and the collected data is presented on the Web map server. Users can categorize and send their feeling after a quake together with the location information using the mobile app named "Sarsıntıyı Hissettim" (I felt the quake) to the database. An open source Web map server, called MapServer, is used to present the collected data to the Internet. The submitted data include quake feeling, location of the user, date and time, and name and surname of the user (depending on the user choice).