From Usage Scenarios to User Interface Elements in a Few Steps

In practice, designers often select user interface elements like widgets intuitively. So, important design decisions may never become conscious or explicit, and therefore also not traceable. In order to improve this situation, we propose a systematic process for selecting user interface elements (in the form of widgets) in a few explicitly defined steps, starting from usage scenarios. This process provides a seamless way of going from scenarios through (attached) subtask definitions and various task classifications and (de)compositions to widget classes. In this way, it makes an important part of user interface design more systematic and conscious. For an initial evaluation of the usefulness of this approach, we conducted a small experiment that compares the widgets of an industrial GUI that was developed as usual by experienced practitioners, with the outcome of an independent execution of the proposed process. Since the results of this experiment are encouraging, we suggest to investigate this approach further in real-world