Q. What could prevent a designer from making the best design choice when applying design rules too early?

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Q. What is the purpose of design patterns in HCI?

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Q. What are the most abstract design rules called, which can be applied to enhance the usability of an interactive system?

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Q. Which main category of usability principles focuses on the ease with which new users can start effective interaction?

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Q. Which main category of usability principles emphasizes the multiple ways in which the user and system exchange information?

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Q. What does the category of principles called "Robustness" primarily support in interactive systems?

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Q. What is the key reason for deriving principles for interaction in the design of interactive systems?

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Q. Which of the following best describes the purpose of the presented collection of usability principles?

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Q. How are the principles within the three main categories of Learnability, Flexibility, and Robustness further subdivided?

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Q. Which of the following is an essential characteristic of general principles that sets them apart from specific guidelines?

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Q. What does the term "repeatability" imply in the context of usability principles?

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Q. What distinguishes learnability from memorability among the Learnability principles?

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Q. What does learnability concern in the context of an interactive system?

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Q. What is predictability in the context of an interactive system?

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Q. What distinguishes predictability from deterministic behavior in an interactive system?

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Q. What is the purpose of predictability in an interactive system?

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Q. How does predictability in an interactive system relate to the user's knowledge of the system's behavior?

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Q. What does the concept of predictability primarily aim to avoid in interactive systems?

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Q. What is operation visibility in the context of an interactive system?

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Q. How does operation visibility support the principle of predictability?

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