The purpose of this study is to investigate what interface in interactive contents on computers has higher usability. The sample material employed the contents that are taught in this college. Three interactive contents were built with Flash, which have different interface respectively. The usability of each contents were evaluated by 19 people from the 5 points of view.
The result revealed two features of the interface could provide high usability:
(1) the interface which is easy to understand visually, having buttons for instance, and,
(2) the interface which is easy for users to operate, "drag & drop" for instance, even if it is rather difficult to operate or has rather high possibility of errors.