Pearson eText for Software Engineering -- Instant Access (Pearson+)
10th Edition
ISBN: 9780137503148
Author: Ian Sommerville
Publisher: PEARSON+
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Expert Solution & Answer
Chapter 18, Problem 18.1E
Explanation of Solution
Distinctions between Services and software components:
Some of the critical distinctions between services and software components are represented in the below table:
Services | Software Components |
Services should be independent and loosely coupled. | Software components should not be independent and loosely coupled. |
The interface of services is a “provides” interface that allows accesses to the service functionality. However services do not have a “requires” interface as services are intended to be independent and usable in different context. | Software components have two related interfaces- “provides” interface and “requires” interface. |
Services communicate by exchanging messages, expressed in XML, and these messages are distributed using standard messaging transport protocols such as http and TCP/IP. | Software components can be independently deployed and composed without modification. |
As there is a single strand of services against several competing standards of components, service inter-operability is much better than components. | As there are several competing standards of components against a single strand of services against, components inter-operability is much poorer than services. |
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Chapter 18 Solutions
Pearson eText for Software Engineering -- Instant Access (Pearson+)
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- QUESTION 3a. Evaluate the differences between systems software and application software. b. Use a diagram to depict the relationship between the two softwares.arrow_forwardThe phrases "cohesion" and "coupling" have the same meaning in the context of the software business.arrow_forwardWhat perspectives should software-intensive system models consider?arrow_forward
- When discussing the software industry, the terms "cohesion" and "coupling" are often used synonymously with one another.arrow_forwardThis question from "Object oriented analysis and design" subject. *Assume as "Bus reservation system" and continue. Thank you.arrow_forwardIn the process of building models for software system architecture, which perspectives have to be taken into consideration?arrow_forward
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