Solution
Correct answer is Option 4
Explanation:
Software quality metrics are a subset of software metrics that focus on the quality aspects of the product, process, and project.
These are more closely associated with process and product metrics than with project metrics.
Software metrics can be classified into three categories
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Product metrics − Describes the characteristics of the product such as size, complexity, design features, performance, and quality level.
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Process metrics − These characteristics can be used to improve the development and maintenance activities of the software.
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Project metrics − This metrics describe the project characteristics and execution.
Examples include the number of software developers, productivity.