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What is Software Quality? List down different Software Quality Metrics?

Decoding Software Quality: Metrics and Measurement in IT

What is Software Quality?

  • Fitness for purpose: Meeting specified requirements and user needs.
  • Freedom from defects: Minimizing bugs, errors, and vulnerabilities.
  • Maintainability: Ease of modification, enhancement, and debugging.
  • Usability: Intuitive and user-friendly design and functionality.
  • Reliability: Consistent performance and minimal downtime.
  • Efficiency: Optimal resource utilization (memory, processing power).
  • Portability: Adaptability to different platforms and environments.
  • Security: Protection against unauthorized access and threats.
  • Scalability: Ability to handle increasing workloads and data volumes.
  • Reusability: Ability to reuse components in other projects.

Software Quality Metrics: Functional Aspects

  • Functionality: Percentage of features implemented correctly.
  • Completeness: Extent to which all specified requirements are met.
  • Correctness: Accuracy of the software's output and behavior.
  • Reliability: Mean Time Between Failures (MTBF).
  • Efficiency: Execution speed, resource consumption, and throughput.
  • Usability: Task completion time, error rate, and user satisfaction.
  • Portability: Effort required for adaptation to different platforms.

Software Quality Metrics: Non-Functional Aspects

  • Maintainability: Number of bugs, code complexity, and documentation quality.
  • Security: Number of vulnerabilities discovered, penetration testing results.
  • Scalability: Response time under varying load, resource usage at peak loads.
  • Performance: Transaction processing rate, average response time.
  • Security: Number of security vulnerabilities identified and fixed.
  • Testability: Ease of designing and executing tests.

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