Human Computer Interaction

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“Human–computer Interaction (HCI) involves the study, planning, and design of the interaction between people (users) and computers. It is often regarded as the intersection of computer science, behavioral sciences, design and several other fields of study. (Human–computer interaction, 2012) Human-Computer Interaction (HCI) is the study of how people interact with computers i.e. how users communicate with the computer system and understand the functionality of the system, using input devices and software’s. User and computer interaction occurs at the user interface. A user interface is program that controls the display for the user, allowing for computer interaction. Depending on the how good or bad the user interface it is evaluated to what extent computers are or are not developed for successful interaction with human beings. There are good and bad examples of a user interface design, and in this analysis of user interface I will give an example of a good and a bad user interface designs with regards to Norman's design principles and Nielsen’s usability principles. Normans Design Principles and Nielsen’s Usability principle are used for designing a good user interface and acts as a guideline that helps interface designers to create interactive webpage’s. These principles also help identify good or bad user interface designs. Normans Design Principles exemplifies the psychology behind 'good' and 'bad' designs. Norman design principles that are used include; visibility, feedback, constraints, mapping, consistency, and affordance. “Nielsen’s usability Heuristic evaluation” means identifying usability problems with your website by checking the website (layout, design, and outer template, content) against 10 so-called best-practice guidelines.” (Explaining Usability Heuristics – a quick guide, 2012). The 10 principles include: Visibility of system status,

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