Process-based Design of Multimedia Annotation Systems

Annotation of digital multimedia comprises a range of different application scenarios, supported media and annotation formats, and involved techniques. Accordingly, recent annotation environments provide numerous functions and editing options. This results in complexly designed user interfaces, so that human operators are disoriented with respect to task procedures and the selection of accurate tools. In this thesis we contribute to the operability of multimedia annotation systems in several novel ways. We introduce concepts to support annotation processes, at which principles of Workflow Management are transferred. Particularly focusing on the behavior of graphical user interface components, we achieve a significant decrease of user disorientation and processing times.