| | LLT Journal: Design and Evaluation of the User Interface... |
 | | Using a definition of the user interface as the communication channel between the user and the functional elements of the computer (Furnes and Barfield, 1995; Marchionini, 1991; Waterworth, 1992), human-computer interaction can be seen as a system with three components: a computer/application, an interface, and a human user subsystems (see Figure 1). |
 | | The design process of a user interface involves the development of a conceptual model of the application and its functionality by the designer, which is then implemented as the user interface, often using one or many metaphors. |
 | | Interface design is the process of selecting interface elements and features based on their ability to deliver support for the cognitive processes involved in the instructional activities facilitated by the application. |
| llt.msu.edu /vol2num1/article2 (4671 words) |