Q. What does the principle of "reachability" in interactive systems address?

View solution

Q. hat issue does the principle of "reachability" help prevent?

View solution

Q. What is the key characteristic of a system that is "reachable"?

View solution

Q. Why might the principle of "reachability" alone not be sufficient to ensure user satisfaction?

View solution

Q. What is the main requirement for an undo feature in interactive systems?

View solution

Q. What formal condition defines the behavior of the undo feature?

View solution

Q. Why is the basic undo requirement inconsistent for systems with more than two states?

View solution

Q. What is the main drawback of the basic undo requirement?

View solution

Q. What aspect of interaction do models focused on "Timing" primarily address?

View solution

Q. Which of the following is a distinguishing feature of the "Windowed systems" model?

View solution

Q. What do models addressing "Attention" aim to describe?

View solution

Q. What does the term "non-determinism" refer to in the context of interaction models?

View solution

Q. What do "Dynamic pointers" models primarily focus on?

View solution

Q. Why are there few models of continuous real-time interaction in the HCI literature?

View solution

Q. Which of the following is NOT an example of continuous behavior?

View solution

Q. What os meant by "event-in/status-out" in the context of the PIE model?

View solution

Q. What is the main purpose of interstitial behavior in status–event analysis?

View solution

Q. What distinguishes status–event analysis from discrete models of interaction?

View solution

Q. What is the purpose of status-change events in status–event analysis?

View solution

Q. What is the role of status phenomena in status–event analysis?

View solution