AQA Information and Communication Technology/ICT5/Human-Computer Interaction

Human-Computer interaction is concerned with the design, evaluation and implementation of interactive computer systems, using Human-Computer interfaces in the safest and most healthy way. Ergonomics Ergonomics are the designs and functionality of the environment. Applying this would be a study of the environment to see how improvement can be made more comfortable for the users. Measures to improve the ergonomics include Improved lighting Furniture better suited Why is this important? Could improve productivity Prevent RSI (Repetitive Strain Injury). With adjustable chairs and furniture in the right positions, could be prevented. Energy Efficiency Improve Job satisfaction (motivates) Psychological Factors The understanding of how users receive, process and store information. Information can be received by 4 main ways: Vision (seeing) Distinguishing colours can effect how a person reacts to a situation (Red means Warning or Danger). This shouldn't be relied on because of colour blindness. Hearing Most commonly sounds are used in warning messages - the Dong in Windows. This is standard and therefore the user knows straight away that it is a warning. Touch Human nature wants something to ensure a button has been pressed - buttons allow that pressure to be enforced. Movement The movement of small objects is understandably difficult.