Question

What does the principle of "full predictability" require?

a.

The system to be able to predict user actions accurately.

b.

The observable effect to be exactly the same as the system's internal state.

c.

The system to be fully transparent and observable.

d.

The system's behavior to be in accordance with principles of observability and predictability.

Posted under Human Computer Interaction

Answer: (b).The observable effect to be exactly the same as the system's internal state. Explanation:The principle of "full predictability" requires that the observable effect contains exactly the same information as the system's internal state. In other words, you can observe the complete state of the system and predict anything it will do.

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