Visualization of multi-layered data in node networks

Sammanfattning: Visualization is the discipline of representing information with visual elements. Data structures can benefit from visualization, enabling people deeper understanding of the structures. The more complex the data structure, the harder it can be to keep track of different relations between different objects in the structure without a good visual representation. The aim of this thesis was to create a tool for visualizing a multi-layered data structure for a company called Sinch. After a literature study on, among other subjects, visualization, graph drawing, and interaction design, a tool that is an interactive node network was developed. Using force-directed graph drawing algorithms for finding optimal node placement, simulated annealing algorithms for label placement, and other techniques, a single-page web application was built. The tool is presented in this thesis with pictures and in-depth descriptions of how the interaction is to work, as well as the thought processes behind the different design choices.