Figure 3: Diagram for the workflow of exam preparation and processing. It displays the documents in the box and the processing steps at the arrows. In parentheses are for the documents the types (office documents Word and Excel, exchange formats PDF and XML, paper, image processing TIFF and objects in the Java programming language) and for the processing steps, the people (lecturer, light gray or orange or coordinator dark gray or highlighted in blue) or the specified program. Some communication steps (e.g. sending e-mails) are not mentioned.