A GUI Should Be Responsive to the User

question 74

Multiple Choice

A GUI should be responsive to the user.If a GUI interaction starts a time-consuming task, the GUI may not be responsive to the user until the task completes.Which approach would make the GUI responsive under these circumstances?

• A)As you run the task, break and check for events.
• B)Ask the user if she is sure she wants to run the task.
• C)Run the task in a separate thread.
• D)Disable the GUI during the task.

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Definitions:

Continuous Variables

Variables that can take an infinite number of values within a given range.

Product-moment

A statistical measure of the linear correlation between two variables, often expressed as Pearson's correlation coefficient.

Scatterplot

A type of graph used in statistics to display values for two variables for a set of data, showing the relationship between them.

R(xy)

A statistical measure representing the strength and direction of a linear relationship between two variables.