Tool for Visualizing Educational Process Based on Modified Directly-Follows Graphs

The developed tool for visualizing the educational process based on modified directly-follows graphs involves the implementation of a client-server web-application that will allows to build models of educational processes from event logs and visualize them using the acyclic process visualization method developed within the framework of this work, which is based on merging Directly-Follows Graphs (DFG) and Sankey diagrams. The user has the opportunity to select the desired subset of students by filtering the main model according to the specified parameters: by selected events (vertices of the graph), by the selected transition connecting two vertices of the graph, by the lector or group and other parameters. A special feature of the application and the developed visualization method is the ability to visualize several selected subsets on the same graph, as well as visualize the intersection of these subsets. Visualization of the resulting model simplifies its further analysis to search for relationships, deviations and anomalies in educational processes, which can be useful for researchers and university researchers, as well as compilers and administrators of educational programs.