Software Engineering (10th Edition)
10th Edition
ISBN: 9780133943030
Author: Ian Sommerville
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 11, Problem 11.3E
Explanation of Solution
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...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Describe the concept of fault tolerance and its significance in software safety engineering.
Explain the concept of "fault masking" and its implications for software safety.
Explain the concept of fault tolerance in software safety. How can it be achieved?
Chapter 11 Solutions
Software Engineering (10th Edition)
Knowledge Booster
Similar questions
- Explain the principles of fault tolerance and redundancy in software safety engineering.arrow_forwardExplain the concept of "fault tolerance" in software safety.arrow_forwardExplain the concept of fault tolerance in software safety. How can redundancy and error detection/correction techniques be employed to enhance fault tolerance?arrow_forward
- Describe the concept of a fault-tolerant system model. What techniques and strategies can be employed to ensure system reliability in the presence of faults?arrow_forwardGive a real life example of standby sparing technique. Explain necessity of Fault masking & containment technique in fault tolerance system.arrow_forwardYou are required to briefly describe the fault tree diagram provided.arrow_forward
- Describe the concept of fault tolerance in software safety. How can redundancy and error detection techniques enhance fault tolerance?arrow_forwardWhat exactly are the defining characteristics of DRY infractions?Where may one find them the most frequently?arrow_forwardDescribe the concept of fault tolerance in computer systems. What strategies can be employed to achieve fault tolerance?arrow_forward
- You are tasked to design a system that will monitor and regulate the air flow in a hospital ward. The design should take inputs from all of the following four sensors: Sensor A has been set to trigger when the windows in the ward are open. Sensor B has been set to trigger when the relative level of moisture in the air has exceeded 30%. Sensor C is an anemometer and has been set to trigger when the rate of air flow at the ventilation grills has dropped below 20 m/s. Sensor D is a thermometer and has been set to trigger when the ambient temperature in the ward has exceeded 20°C. The system should operate based on the following conditions: • If the windows in the ward are closed, the system should switch on the air conditioning unit automatically if 1) the temperature is over 20°C and airflow rate is less 20m/s, or 2) temperature is over 20°C and humidity over 30%. • If the windows in the ward are open and the ambient temperature is over 20°C, the system should generate an alert. a)…arrow_forwardWhat exactly are some examples of situations in which overfitting could take place?arrow_forwardTroubleshooting in Daily Life Troubleshooting is a technical term for solving a problem. Chances are you have already done some troubleshooting in your daily life. What are some examples of troubleshooting that you have experienced? What were you trying to fix and why? When you were doing it, did you think of it as "troubleshooting" or not? If you did the same activity today, would you think of it as "troubleshooting" now? Could you provide documentation for someone else who may have had the same issue so they could resolve it? How would you do that? What would you include?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
Starting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSON
Digital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSON
Database Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage Learning
Programmable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education