EBK SOFTWARE ENGINEERING
10th Edition
ISBN: 9780133943238
Author: SOMMERVILLE
Publisher: PEARSON CO
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Chapter 11, Problem 11.3E
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Reliability Metrics:
To specify the required reliability for a train protection system, the most appropriate reliability metric is Probability Of Failure On Demand (POFOD).
- It is defined as the probability to which the system will respond correctly when a request is made for service at a given point of time.
- This metric is used for protection systems where demands for service are intermittent and relatively infrequent over the system lifetime...
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Chapter 11 Solutions
EBK SOFTWARE ENGINEERING
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- Fault management, performance management, and security management are all terms that are used interchangeably.arrow_forwardHow does fault tolerance contribute to system reliability?arrow_forwardProvide examples of redundancy mechanisms and their real-world applications in enhancing system reliability.arrow_forward
- Difference between fault management, performance management and security management.arrow_forwardThe Disrupter is an item that interferes with normal operation. For each category, what are the conditions under which hardware failure is ruled out?arrow_forwardDescribe the role of Mean Time Between Failures (MTBF) and Mean Time To Repair (MTTR) in assessing system reliability.arrow_forward
- You are an engineer in charge of the development of a small, safety-critical train control system, which must be demonstrably safe and secure. You suggest that formal methods should be used in the development of this system, but your manager is skeptical of this approach. Write a report highlighting the benefits of formal methods and presenting a case for their use in this project.arrow_forwardAnalyze the impact of software bugs and vulnerabilities on system reliability.arrow_forwardIs there any government surveillance on organizations to ensure they aren’t invading, selling, or sharing personal information to outsiders? Since the process of building a software for safety critical systems is expensive, does that mean there is a high demand for professional who focus on safety and systems ?arrow_forward
- How can software safety standards, such as ISO 26262 for automotive systems, be applied to other industries?arrow_forwardWhat exactly does flaw reporting include? What various stages are there in your problem defect life cycle?arrow_forwardExplain the concept of a safety integrity level (SIL) and how it is determined for software components in safety-critical systems.arrow_forward
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