Q. What physical factors in the environment can directly affect the quality of the interaction and the user's performance?

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Q. Why should physical position and seating support be considered in the design of an interactive system's physical environment?

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Q. What potential health risks should be considered when designing the physical environment for computer use?

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Q. What is an important ergonomic guideline regarding the use of color in displays?

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Q. Why is it important to be aware of cultural associations of color in design?

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Q. How does human psychology relate to the field of ergonomics?

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Q. Which interface style provides a means of expressing instructions to the computer directly using function keys, single characters, abbreviations, or whole-word commands?

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Q. What is a benefit of using a command line interface?

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Q. What is a limitation of command line interfaces?

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Q. Which interface style is considered powerful and flexible due to its direct access to system functionality and the ability to apply multiple tools to the same data?

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Q. Which interface style displays a set of options on the screen and allows users to select options using the mouse or alphanumeric keys?

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Q. What advantage do menu-driven interfaces offer over command line interfaces?

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Q. Why is natural language interface difficult for computers to understand?

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Q. In which scenario is a natural language interface more likely to be successful for computers?

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Q. What is the main purpose of question and answer dialog interfaces?

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Q. Which type of interface is suitable for restricted domains and novice users?

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Q. In query languages, what does the user need to specify when retrieving information from a database?

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Q. What makes spreadsheets a flexible and attractive medium for interaction?

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Q. What type of interface is appropriate for data entry applications and novice users?

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Q. What is the main difference between question and answer dialog interfaces and query languages?

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