Explain the concept of fail-safe and fail-soft mechanisms in software safety, and provide real-world examples where they are crucial.
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Explain the concept of fail-safe and fail-soft
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Solved in 3 steps
- Discuss the concept of fail-safe and fail-operational systems in the context of software safety, and provide real-world examples.In the context of software safety, what is meant by "common cause failures" and how can they be mitigated?What is meant by "fail-safe" and "fail-soft" in software safety, and how do they differ in their approach to handling faults?
- Explore the concept of formal methods in software safety engineering. How do formal methods help in verifying the correctness of safety-critical software?What is "safety argumentation" in software safety, and how does it contribute to the assurance of safety properties?Describe the concept of safety assurance cases in software safety engineering. How do safety cases help in demonstrating the safety of a software-intensive system?
- How does formal methods and model-based development contribute to the assurance of safety-critical software? Provide examples.Discuss the principles of safety-critical software development, including the V-model, safety standards (e.g., ISO 26262), and the role of formal methods.Describe the concept of failure modes and effects analysis (FMEA) in the context of software safety.
- Describe the concept of a safety case and its role in demonstrating the safety of a software system.Explore the concept of fault injection testing in software safety. How is it performed, and what are its benefits in assessing system resilience?Define software safety and its significance in critical systems. What are some common safety-critical domains where software safety is paramount?