Question

What does the "formality gap" imply for the validation of interactive systems?

a.

The validation process will rely entirely on formal mathematical proofs.

b.

The validation process will be entirely subjective and lack objective proof.

c.

The validation process will require experts with design expertise.

d.

The validation process will focus on architectural design.

Posted under Human Computer Interaction

Answer: (b).The validation process will be entirely subjective and lack objective proof. Explanation:The "formality gap" implies that the validation process for interactive systems will be subjective to some extent and may lack objective proof. As the origin of customer requirements lies in the inherent ambiguity of the real world, formal proofs are not feasible, and validation will involve subjective means.

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