EBK SOFTWARE ENGINEERING
10th Edition
ISBN: 8220101455970
Author: SOMMERVILLE
Publisher: PEARSON
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Chapter 11, Problem 11.2E
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Software Systems:
The reliability metrics for the classes of software system is shown below.
| System | Reliability Metric | Suggested Value |
| Patient monitoring system | Availability | System must be unavailable for less than 20 minutes per month. |
| Word processor | Rate of Occurrence of Failure | Failures that result in loss of data should not occur more than once per 1200 hours of use... |
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Methods (Ch6) - Review
1. (The MyRoot method) Below is a manual implementation of the Math.sqrt() method in Java.
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public class SquareRoot {
public static void main(String[] args) {
}
// implement a loop of your choice here
// Method that calculates the square root of integer variables
public static double myRoot(int number) {
double root;
root=number/2;
double root old;
do {
root old root;
root (root_old+number/root_old)/2;
} while (Math.abs(root_old-root)>1.8E-6);
return root;
}
// Method that calculates the square root of double variables
public static double myRoot(double number) {
double root;
root number/2;
double root_old;
do {
root old root;
root (root_old+number/root_old)/2;
while (Math.abs (root_old-root)>1.0E-6);
return root;
}
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Chapter 11 Solutions
EBK SOFTWARE ENGINEERING
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