Workload

Question 1

The total amount of work or effect that a person is to perform within a time limit

Answer 1

Workload

Question 2

The amount of mental effort necessary to perform a task within a time limit

Answer 2

Mental Workload

Question 3

Primary Task Measures

Answer 3

Evaluate the mental workload requirements by directly examining performance of the user or system (e.g. reaction time, accuracy)

Question 4

Secondary Task Measures

Answer 4

Introduces and records performance on primary and secondary task

Question 5

Loading Task Paradigm

Answer 5

Maintaining performance on a secondary task even if primary task suffers

Question 6

Subsidiary Task Paradigm

Answer 6

Requires users to maintain performance on primary task at expense of secondary task

Question 7

Psychophysiological Measures

Answer 7

Can measure arousal directly, avoiding a secondary task (e.g. heart rate, brain activity)

Question 8

Pupillometry

Answer 8

Technique of measuring pupil diameter as a measure of arousal

Question 9

Subjective Assessment Techniques

Answer 9

Evaluate workload by obtaining users’ judgments about their tasks

Question 10

Common Subjective Workload Measures

Answer 10

Cooper-Harper Scale, Subjective Workload Assessment Technique (SWAT), NASA Task Load Index (NASA-TLX), and Workload Profile (WP)

Question 11

Comparison Technique

Answer 11

Analytical technique that uses workload data from a predecessor system to estimate the workload for a system under development

Question 12

Expert Opinion

Answer 12

Analytical technique that is easy and the most extensively used

Question 13

Mathematical Models

Answer 13

A type of analytical technique

Question 14

Task Analysis

Answer 14

Analytical technique that decomposes the overall system goal into segments and user tasks

Question 15

Simulation Model

Answer 15

Analytical technique that uses a computerized version of reality