Software Engineering (10th Edition)
10th Edition
ISBN: 9780133943030
Author: Ian Sommerville
Publisher: PEARSON
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Chapter 12, Problem 12.3E
Program Plan Intro
Insulin pump:
Insulin pump system is an example of safety-critical system because failure in minute operations or service will lead injury or even death to the system users. Possible accidents for the users when using this machine involves heart, kidney, eye problem.
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Chapter 12 Solutions
Software Engineering (10th Edition)
Ch. 12 - Prob. 12.1ECh. 12 - Prob. 12.2ECh. 12 - Prob. 12.3ECh. 12 - Prob. 12.4ECh. 12 - Prob. 12.5ECh. 12 - Prob. 12.6ECh. 12 - Explain why using model checking is sometimes a...Ch. 12 - List four types of systems that may require...Ch. 12 - Prob. 12.9ECh. 12 - Should software engineers working on the...
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- Please define the term "hard real-time behaviour" completelyarrow_forward5. The guidance system of a ship is controlled by a computer that has three major modules. In order for the computer to function properly, all three modules must function. Two of the modules have reliabilities of .97, and the other has a reliability of .99.a. What is the reliability of the computer?b. A backup computer identical to the one being used will be installed to improve overall reliability. Assuming the new computer automatically functions if the main one fails, determine the resulting reliability.c. If the backup computer must be activated by a switch in the event that the first computer fails, and the switch has a reliability of .98, what is the overall reliability of the system? (Both the switch and the backup computer must function in order for the backup to take over.)arrow_forwardIt is a collection of instruments or their application for the purpose of monitoring measurement or control. Instrumentation O Testability Measurability O Metrologyarrow_forward
- Hard real-time system functioning depends on what?arrow_forwardHow do you determine whether or not a piece of software is using a significant amount of system resources, hence causing the system to run more slowly? Is it feasible to increase the number of users of the operating system without compromising its reliability or functionality?arrow_forwardOperating systems How to calculate the safe and unsafe state of this figure a,b,c What step I should do first then and short cut calculation o?arrow_forward
- What steps can you take to mitigate the effects of this issue in the event it recurs in the future?arrow_forwardComputer Science Processor A has a 3Hz clock and runs a program in 10 seconds. Processor B runs the same program in 8 seconds with a clock rate of 4Hz. How many (more/fewer) clock cycles does processor B require?arrow_forwardSpecify the System Administration Mode in detail.arrow_forward
- What must happen before a system deadlocks?arrow_forwardMake extensive notes on input and output systems.arrow_forwardCompare and contrast the various software testing approaches. The extent to which a piece of software is tested may have an impact on its quality. How much testing do you intend to do on the ATM's operating system?arrow_forward
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