User perceptions of drawing logic diagrams with pen-centric user interfaces
Bo Kang, Jared N. Bott, Joseph J. LaViola · 2013
Figure 1: Three interfaces for creating logic diagrams in our study. (a) An ideal natural 100 % recognition accuracy sketch interface as if using pen and paper. (b) A drag-and-drop interface with a static logic gate toolbar on the left side to drag and drop gates. (c) A hybrid interface, combining features from sketch and drag-and-drop, with a radial menu for creating gates. Researchers hypothesize pen-based interfaces are the input method of choice for structured 2D languages, as they are natural for users. In our research we asked whether naturalness, similarity to pen and paper, is more important than speed of entry and ease of use by performing a study comparing interfaces for creating logic diagrams. We compared a Wizard of Oz based sketch interface with 100 % accuracy, a drag-and-drop interface, and a hybrid interface combining features from sketch and drag-and-drop. Eighteen college students with logic gate diagram backgrounds participated in the study. We found that participants finished fastest with the hybrid interface, but ten out of eighteen participants felt that the sketch interface was