He describes very convincingly why authentic tasks are so important, if we want to create testing situations that will teach and improve student learning, not just measure it.
“Assessment must be anchored in and focused on authentic tasks because they supply valid direction, intellectual coherence, and motivation for the day-in and day-out work of knowledge and skill development. . . . Assessment is authentic when we anchor testing in the kind of work people do, rather than merely eliciting easy-to-score responses to simple questions” (1998, p. 21).