a) Describe a critical system (2 Marks)b) Discuss the “dependability” requirement in critical system. (3 Marks)c) Discuss three consequences of undependable system (3 Marks)d) Discuss three types of critical system (6 Marks)e) State and explain three types of failures in critical systems (6 Marks)
Question
a) Describe a critical system (2 Marks)b) Discuss the “dependability” requirement in critical system. (3 Marks)c) Discuss three consequences of undependable system (3 Marks)d) Discuss three types of critical system (6 Marks)e) State and explain three types of failures in critical systems (6 Marks)
Solution
a) A critical system is a type of system where failure could result in loss of life, significant property damage, or damage to the environment. These systems are often found in industries such as aviation, healthcare, nuclear power, and transportation. They are designed to be highly reliable and resilient, often with redundancy and fail-safe mechanisms built in to prevent catastrophic failure.
b) Dependability in a critical system refers to the ability of the system to perform its intended function reliably and accurately, often under challenging conditions. This includes the system's ability to handle errors, recover from failures, and maintain its performance over time. Dependability is a key requirement in
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