Certified Systems Engineering Professional Csep · Free Practice Question Medium
Question 34
[ID-3087] Choose the right option regarding the uncertainty related to a system.
-
A
Aleatory uncertainty cannot be completely reduced during the SE process.
-
B
There are 3 types of uncertainty: epistemic, probabilistic and aleatory.
-
C
No uncertainties can be mitigated during the SE process.
-
D
Epistemic uncertainty cannot be completely mitigated during the SE process.
Reveal correct answer
Correct answer: A
A.
Aleatory uncertainty is caused by inherent randomness in system behavior, materials, environment, or operational conditions.No amount of additional knowledge or analysis can completely reduce it. See INCOSE SE Handbook 5th Ed. section 1.4.1, p. 15
B.
The handbook defines only two types of uncertainty:
Epistemic uncertainty – due to lack of knowledge and can be reduced with more information.
Aleatory uncertainty – due to randomness and cannot be reduced.
See INCOSE SE Handbook 5th Ed. section 1.4.1, p. 15.
C.
Uncertainties can be mitigated. See INCOSE SE Handbook 5th Ed. section 1.4.1, p. 15.
D.
Epistemic uncertainty can be completely mitigated through additional data collection, system modeling, experimentation, and analysis. SE processes specifically aim to reduce epistemic uncertainty by increasing knowledge. See INCOSE SE Handbook 5th Ed. section 1.4.1, p. 15.
Discussion
Think the marked answer is wrong, or have a better explanation? Share it below — comments appear after review.
