| Interface navigation. Layout, visual communication, affordances and constraints. |
| Situational factors gain importance, as the affordances of the environment strongly influence the way in which the user interacts with a device. |
| According to Gibson, affordances exist naturally and are directly perceived by the viewer. |
| But they lack the affordances that really matter to a group of people working together on a report. |
| Digital documents, of course, have their own affordances. |
| Technologies are not only tools, but also vehicles of affordances, values and interpretations of the surrounding reality, like hermeneutic devices. |
