Pearson eText for Software Engineering -- Instant Access (Pearson+)
10th Edition
ISBN: 9780137503148
Author: Ian Sommerville
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Expert Solution & Answer
Chapter 17, Problem 17.1E
Explanation of Solution
Scalability:
Scalability is nothing but an attribute that has the ability to grow and administer increased demand in an organization or network or software.
In other words, when the network, system, software or an organization is ready to handle,
- Influx of demand
- Increased productivity
- Changing trends
Differences between scaling up and scaling out with respect to scalability:
| Scaling up | Scaling out |
| It is the process of replacing resources in the system with more powerful resources | It is the process of adding new resources to an existing system. |
| It is also called as concurrent | It is also called as distributed programming. |
| It is costlier than scaling out. | It is cost effective. |
| Example: If the computer runs out of resources, it is not necessary to make changes with the computer instead, the memory can be increased. | Example: Adding extra web server in order to work along with the existing one. |
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Chapter 17 Solutions
Pearson eText for Software Engineering -- Instant Access (Pearson+)
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