<p>A model of computer-human interaction is presented, viewing the interaction as a hierarchy of virtual protocol dialogues.</p><p>Each virtual protocol realizes the dialogue on the level above itself and is in turn supported by a lower level protocol.</p><p>This model is inspired by the OSI-model for computer networks from the International Standards Organization.</p><p>The virtual dialogue approach enables the separation of the technical features of new devices (e.g. a mouse or a graphical display) from the conceptual features (e.g. menus or windows).</p><p>Also, it is possible to analyze error messages and other feedback as part of the different protocols.</p>
A Virtual Protocol Model for Computer-Human Interaction
