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Classification: reuse level in the process

publish date: 2026/05/29 09:03:23.528713 UTC

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Classify each statement according to the level of reuse it primarily refers to. Parent categories: System-level reuse, Component-level reuse, Object-level reuse.

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Correct Answer

(1) Adopting an existing COTS product as the core of a new application,System-level reuse
(2) Integrating a third-party payment module into an e-commerce site,Component-level reuse
(3) Reusing a library class that implements a generic list data structure,Object-level reuse

Explanation

Using a whole COTS product corresponds to system-level reuse; integrating a functional module is component-level reuse; and reusing individual classes or objects is object-level reuse.

Reference

Software Engineering, Ian Sommerville, 9th edition

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