For each of these three types, the GUI offers distinct design areas. Each area contains a management section, a workspace, and a preview designer (Figure ). The management area gives an overview of the components that have already been started or established. It allows insight into all components that are available to the user and provides special functions to organize them, including the editing of metadata, the activation and deactivation in the productive ELN environment, and the download for sharing (example for Elements: Figure ). The work area provides the main functionality to structure the components, to assign the desired functionality and to design the UI (example for Segments: