HFE Study Exam Questions and
Answers 100% Solved | Graded A+
10. Which types of naturalistic decision-making are described in
Rasmussen's SRK model
and what are their characteristics? - ✔✔It starts with what you perceive and
if you have knowledge in this you can make an action directly otherwise
you will move on to interpretation where if you have the correct rule you
can move to specify actions. If we take it further, you move on to evaluation
where you also can move directly to intention and if you will complete the
whole circle you move on to what´s my goal. → intention → Specify action
→ Execution of actions.
Categorization of active human errors.
Unintentional errors (wrong routine action)
1. Skill-based mistakes: a) Lapse - memory mistake b) Slip - Right
intention, wrong action
Unconscious errors (Wrong planning):
2. Rule-based mistake - wrong intention - right action (habit)
1
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,3. Knowledge-based mistake - lack of knowledge leads to wrong
conclusion
Conscious error
4. Violation - Taking shortcuts; do not care for routines.
11. What is vigilance and how can negative effects of reduced vigilance be
avoided? - ✔✔It´s natural to be vigilance when you don´t feel secure and
the more secure you think you are the more risks you will take. To prevent
this, you need to keep remember the person how important, for example
safety goggles are when using some type of equipment. You can also start
with rules but for long term you should come up with some other ideas.
12. Which factors should be considered when organizing different items at
a workstation? - ✔✔People are not a like so you need to make the work
station adjustable for every person in a certain range.
Design by anthropometrics
1. Determine user population
2. Choose percentile range, gender
3. Determine reach and clearance dimensions (reach and room)
4. Design work station corresponding to the anthropometrics measure
-Structural
-Functional
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, 13. Which methods are suitable for evaluating usability and how? -
✔✔Procedural reviews (Cognitive walkthrough)
Heuristic evaluation and standard inspection
Risk analysis of use
Usability testing
Skriv om en metod.
Parasuraman, Sheridan, wickens, 2000? A model of types and levels of
atumoation - Lecture human technology??
14. How is usability design related to cost efficiency and production gains?
- ✔✔The concept of usefulness has two components: functionality and
usability. Usability involves a number of different components and the
usability of a technical system can be defined as how well the technology
helps the user to carry out the task for which the technology is intended.
This includes accessibility of the technology and reasonable response
times, support for the users mental process and physical actions. The
products needs an usability design to be accepted by the user to feel
motivated to use the tool. (Bok, 407)
If a worker isn't motivated to do a task, this leads to job dissatisfaction, and
when a worker isn't happy , he perform worse and this affects cost
3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
Answers 100% Solved | Graded A+
10. Which types of naturalistic decision-making are described in
Rasmussen's SRK model
and what are their characteristics? - ✔✔It starts with what you perceive and
if you have knowledge in this you can make an action directly otherwise
you will move on to interpretation where if you have the correct rule you
can move to specify actions. If we take it further, you move on to evaluation
where you also can move directly to intention and if you will complete the
whole circle you move on to what´s my goal. → intention → Specify action
→ Execution of actions.
Categorization of active human errors.
Unintentional errors (wrong routine action)
1. Skill-based mistakes: a) Lapse - memory mistake b) Slip - Right
intention, wrong action
Unconscious errors (Wrong planning):
2. Rule-based mistake - wrong intention - right action (habit)
1
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
,3. Knowledge-based mistake - lack of knowledge leads to wrong
conclusion
Conscious error
4. Violation - Taking shortcuts; do not care for routines.
11. What is vigilance and how can negative effects of reduced vigilance be
avoided? - ✔✔It´s natural to be vigilance when you don´t feel secure and
the more secure you think you are the more risks you will take. To prevent
this, you need to keep remember the person how important, for example
safety goggles are when using some type of equipment. You can also start
with rules but for long term you should come up with some other ideas.
12. Which factors should be considered when organizing different items at
a workstation? - ✔✔People are not a like so you need to make the work
station adjustable for every person in a certain range.
Design by anthropometrics
1. Determine user population
2. Choose percentile range, gender
3. Determine reach and clearance dimensions (reach and room)
4. Design work station corresponding to the anthropometrics measure
-Structural
-Functional
2
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
, 13. Which methods are suitable for evaluating usability and how? -
✔✔Procedural reviews (Cognitive walkthrough)
Heuristic evaluation and standard inspection
Risk analysis of use
Usability testing
Skriv om en metod.
Parasuraman, Sheridan, wickens, 2000? A model of types and levels of
atumoation - Lecture human technology??
14. How is usability design related to cost efficiency and production gains?
- ✔✔The concept of usefulness has two components: functionality and
usability. Usability involves a number of different components and the
usability of a technical system can be defined as how well the technology
helps the user to carry out the task for which the technology is intended.
This includes accessibility of the technology and reasonable response
times, support for the users mental process and physical actions. The
products needs an usability design to be accepted by the user to feel
motivated to use the tool. (Bok, 407)
If a worker isn't motivated to do a task, this leads to job dissatisfaction, and
when a worker isn't happy , he perform worse and this affects cost
3
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.
