Interaction design Assignment Example | Topics and Well Written Essays - 750 words

Interaction design - Assignment Example levant parts of the system are visible by use of suitable affordances that include; buttons, links, dropdown arrows, mouse cursor and highlight on mouse over. The scrollbars provide moving up and down affordances while the icons provide clicking on affordances (Rogers 115). Feedback implies sending information back to the user about what has been done like highlighting and animation and combinations of these. When login button is clicked on a â€Å"depressed† look is evident .Also constraints provide users with a range of usage possibilities e.g. Date time picker for birthday date. Efficiency on the other hand is evident in status updates and comments. When users write comments and post updates, the feed is immediately brought up to date. As a result the users get the feeling similar to natural result of typing. Facebook responsiveness truly encourages interaction among pals. Facebook has personalisation options that allow users to personalise pages and manage different features of their accounts. This flexibility attracts greater attention from the users and gives a more delighting user experience. Facebook tabbed chat feature gives users firmer sense of control and organization over their chatting actions. This feature also allows the users to perform more  than one task at the same time and use other Facebook features while chatting. Locus of attention is predominant in Windows with a darkened background. Upon selecting a picture a modal window with a dark background opens. The system is designed to block all the contents in the background, by doing this the users attention is drawn to the picture. The overall effect is to enable the user to view and interact with the picture with little effort. Errors and error recovery mechanism is proper. This help users recognize and diagnose errors. The place for displaying error messages is at the centre and is highlighted to get the users attention. The Error messages indicate what went wrong, where, and what the