Question

In a direct manipulation system, how are input and output expressions related?

a.

They are represented by separate widgets.

b.

They are aggregated together into a single interaction object.

c.

They are not considered important in the interaction framework.

d.

They are displayed separately on the screen.

Posted under Human Computer Interaction

Answer: (b).They are aggregated together into a single interaction object. Explanation:In a direct manipulation system, input and output expressions are aggregated together into a single interaction object, as widgets embody both input and output languages, blurring the distinction between them.

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Q. In a direct manipulation system, how are input and output expressions related?

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