Software Non Functional testing types

 Non-functional testing involves evaluating the performance, reliability, usability, security, and other non-functional aspects of a software application. Some common types of non-functional testing:

1. Performance Testing: This type of testing assesses the responsiveness, scalability, and stability of a system under different load conditions. It includes tests like load testing, stress testing, endurance testing, and scalability testing to identify performance bottlenecks and ensure the system meets performance requirements.

2. Load Testing: Load testing measures a system's performance under expected user loads to determine its capacity limits and response times. It helps identify performance degradation, resource utilization issues, and potential bottlenecks when multiple users access the system simultaneously.

3. Stress Testing: Stress testing evaluates the system's behavior under extreme conditions, such as high user loads, limited resources, or unfavorable environmental factors. It helps identify how the system handles stress and if it recovers gracefully after stress is removed.

4. Usability Testing: Usability testing focuses on assessing the user-friendliness and ease of use of a software application. It involves gathering feedback from users and evaluating factors like navigation, interface design, error handling, and overall user experience.

5. Security Testing: Security testing identifies vulnerabilities and weaknesses in a system's security controls. It includes tests like penetration testing, vulnerability scanning, authentication testing, and authorization testing to assess the system's resistance to unauthorized access, data breaches, and malicious attacks.

6. Compatibility Testing: Compatibility testing verifies that the software is compatible with different platforms, operating systems, browsers, and devices. It ensures that the application functions correctly and provides a consistent user experience across various environments.

7. Scalability Testing: Scalability testing determines how well a system can handle increased workloads, data volumes, or user traffic. It helps identify performance limitations and ensures the system can scale effectively as the demand grows.

8. Reliability Testing: Reliability testing evaluates the stability and robustness of a software system by subjecting it to various scenarios, including failure conditions. It helps determine the system's ability to recover from failures, handle exceptions, and maintain consistent performance over time.

9. Compliance Testing: Compliance testing ensures that the software meets specific industry standards, regulations, and legal requirements. It includes tests related to data protection, accessibility, privacy, or specific compliance guidelines applicable to the domain or target market.

10. Localization Testing: Localization testing verifies that the software functions correctly in different languages, regions, and cultures. It includes testing language translations, date and time formats, currency conversions, and local regulatory requirements.

11. Recovery Testing: Recovery testing evaluates the system's ability to recover from failures, crashes, or disruptions. It involves testing backup and restore procedures, data recovery, and system resilience to ensure that critical functions can be restored effectively.

These are some common types of non-functional testing, and the specific types may vary depending on the project requirements, application domain, and target audience. It's essential to select and prioritize the appropriate non-functional tests based on the application's characteristics and the desired quality attributes.