What are Non Functional Testing Types

What are Non Functional Testing Types

Non-functional testing is a type of software testing that focuses on the performance, reliability, scalability, and other non-functional aspects of a system. Here are some common types of non-functional testing:

What are Non Functional Testing Types
                                                         What are Non Functional Testing Types
  1. Performance Testing:

    • Load Testing: Evaluates how a system performs under anticipated user loads.
    • Stress Testing: Tests the system’s behavior under extreme conditions to ensure it can handle unexpected peak loads.
    • Volume Testing: Checks the system’s performance when dealing with a large amount of data.
  2. Reliability Testing:

    • Availability Testing: Assesses the system’s availability and uptime.
    • Reliability Testing: Measures the system’s ability to consistently perform a specified function without failure.
  3. Scalability Testing:

    • Scaling Up/Vertical Scaling: Evaluates the system’s ability to handle an increasing workload by adding more resources (e.g., increasing CPU, RAM).
    • Scaling Out/Horizontal Scaling: Assesses the system’s ability to handle increased demand by adding more machines to the network.
  4. Usability Testing:

    • User Experience Testing: Evaluates the overall experience of users while interacting with the system.
    • Accessibility Testing: Ensures that the application is accessible to users with disabilities.
  5. Security Testing:

    • Vulnerability Testing: Identifies vulnerabilities in the system that could be exploited by attackers.
    • Penetration Testing: Simulates real-world attacks to identify potential security risks.
  6. Compatibility Testing:

    • Browser Compatibility Testing: Ensures the application works correctly across different web browsers.
    • Operating System Compatibility Testing: Checks the compatibility of the software with various operating systems.
  7. Maintainability Testing:

    • Portability Testing: Assesses the ability of the software to run on different environments.
    • Upgradability Testing: Checks how easily the software can be upgraded to new versions.
  8. Compliance Testing:

    • Regulatory Compliance Testing: Ensures that the software complies with industry-specific regulations and standards.
  9. Scalability Testing:

    • Concurrency Testing: Checks the system’s ability to handle multiple users or transactions simultaneously.
  10. Recovery Testing:

    • Disaster Recovery Testing: Evaluates the system’s ability to recover from a catastrophic failure or disaster.

These non-functional testing types help ensure that a software system not only functions correctly but also meets the performance, security, and usability requirements expected by users and stakeholders.

How to perform non Functional Testing

Performing non-functional testing involves evaluating the attributes of a system that are not related to specific behaviors or functions but rather focus on aspects like performance, security, reliability, and usability. Here’s a general guide on how to perform non-functional testing:

  1. Understand Requirements:

    • Identify non-functional requirements specified in the project documentation or gather them from stakeholders.
    • Non-functional requirements may include performance goals, security measures, scalability expectations, usability criteria, etc.
  2. Plan Non-functional Testing:

    • Develop a non-functional testing strategy that outlines the scope, objectives, and resources needed for testing.
    • Determine the types of non-functional testing that are relevant to your application.
  3. Select Tools and Environment:

    • Choose appropriate tools for non-functional testing. For example, use performance testing tools like JMeter or LoadRunner for load testing.
    • Set up the testing environment to simulate real-world conditions.
  4. Performance Testing:

    • Load Testing:
      • Create test scenarios that simulate expected user loads.
      • Execute tests to measure system response times and identify performance bottlenecks.
    • Stress Testing:
      • Apply loads beyond the system’s capacity to identify breaking points and weaknesses.
    • Volume Testing:
      • Test the system with a large volume of data to ensure it can handle the expected data sizes.
  5. Security Testing:

    • Vulnerability Testing:
      • Use security testing tools to identify vulnerabilities in the system.
      • Perform code reviews and analysis for security issues.
    • Penetration Testing:
      • Simulate real-world attacks to assess the system’s resilience to security threats.
  6. Usability Testing:

    • User Experience Testing:
      • Evaluate the overall user experience by involving real users or usability experts.
      • Collect feedback on the system’s usability.
    • Accessibility Testing:
      • Test the application’s accessibility for users with disabilities.
  7. Compatibility Testing:

    • Browser Compatibility Testing:
      • Test the application on different web browsers to ensure consistent behavior.
    • Operating System Compatibility Testing:
      • Verify that the application works correctly on various operating systems.
  8. Maintainability Testing:

    • Portability Testing:
      • Test the application on different hardware and software configurations.
      • Check if the application can be easily ported to different environments.
    • Upgradability Testing:
      • Evaluate the process of upgrading the application to newer versions.
  9. Scalability Testing:

    • Concurrency Testing:
      • Assess the system’s ability to handle multiple users or transactions simultaneously.
  10. Recovery Testing:

    • Disaster Recovery Testing:
      • Simulate disaster scenarios and assess the system’s ability to recover.
  11. Document and Analyze Results:

    • Record and analyze the results of non-functional tests.
    • Identify any performance bottlenecks, security vulnerabilities, or usability issues.
  12. Iterate and Improve:

    • Use the insights gained from testing to make improvements to the system.
    • Iterate through the testing process as needed to address any issues found.
  13. Report and Communicate:

    • Prepare and share comprehensive reports with stakeholders.
    • Communicate findings, recommendations, and potential risks associated with non-functional aspects of the system.

Remember that non-functional testing is an ongoing process, and it may need to be repeated as the application evolves or as new requirements emerge. Regularly reviewing and updating non-functional tests helps ensure that a system continues to meet performance, security, and usability expectations.

Advantages of non functional testing

Non-functional testing provides several advantages that contribute to the overall quality, reliability, and performance of a software system. Here are some key advantages:

  1. Performance Optimization:

    • Helps identify and address performance bottlenecks, ensuring that the system meets performance expectations under different conditions and user loads.
    • Optimizes resource utilization, response times, and throughput.
  2. Enhanced User Experience:

    • Usability testing as part of non-functional testing ensures a positive and user-friendly experience.
    • Identifies and addresses issues related to accessibility, user interface design, and overall user satisfaction.
  3. Increased Reliability and Availability:

    • Reliability testing helps assess the system’s ability to perform consistently without failures.
    • Availability testing ensures that the system is accessible and operational when needed, minimizing downtime.
  4. Security and Compliance:

    • Identifies and addresses security vulnerabilities, reducing the risk of data breaches and unauthorized access.
    • Helps ensure that the system complies with industry-specific regulations and security standards.
  5. Scalability and Flexibility:

    • Scalability testing assesses how well the system can handle growing user loads, ensuring it can scale up or out as needed.
    • Enhances the system’s flexibility to adapt to changing business requirements and technological environments.
  6. Cost Savings:

    • Identifying and addressing performance issues early in the development process can save costs associated with rework and system failures in production.
    • Prevents the need for emergency fixes and patches due to unforeseen non-functional issues.
  7. Risk Mitigation:

    • Proactively identifies and mitigates risks associated with performance, security, and usability before the system is deployed to production.
    • Reduces the likelihood of post-release issues that could impact users and business operations.
  8. Customer Satisfaction:

    • Ensures that the software meets or exceeds user expectations in terms of performance, security, and usability.
    • Positive user experiences contribute to customer satisfaction and loyalty.
  9. Competitive Advantage:

    • A well-tested system with optimal performance, security, and usability has a competitive edge in the market.
    • Demonstrates a commitment to quality and reliability, which can attract and retain customers.
  10. Efficient Resource Utilization:

    • Helps optimize the utilization of hardware and software resources, leading to cost-effective infrastructure and reduced operational expenses.
  11. Predictable System Behavior:

    • Non-functional testing provides insights into how the system behaves under different conditions, making it easier to predict and manage system behavior in real-world scenarios.
  12. Continuous Improvement:

    • Non-functional testing is an iterative process, allowing for continuous improvement as the software evolves.
    • Provides feedback for ongoing development cycles, helping teams refine and enhance the system over time.

In summary, non-functional testing plays a crucial role in ensuring that a software system not only meets functional requirements but also excels in terms of performance, security, usability, and other non-functional aspects. This ultimately contributes to the success of the software in the market and the satisfaction of its users.

Related Articles :

  1. What is System Testing in Software Testing
  2. What is Smoke Testing in Software Testing
  3. What is Smoke Testing in Software Testing
  4. What is Integration Testing in Software Engineering
  5. With Non Functional Test Examples

What are non functional testing types?

Types Of Non-Functional Testing

  • Performance Testing.
  • Load Testing.
  • Security Testing.
  • Portability Testing.
  • Accountability Testing.
  • Reliability Testing.
  • Efficiency Testing.
  • Volume Testing.

What are the 5 types of functional testing?

Functional Testing Types

  • 1) Unit Testing.
  • 2) Integration Testing.
  • 3) Interface Testing.
  • 4) System Testing.
  • 5) Regression Testing.
  • 6) Smoke Testing.
  • 7) Sanity Testing.
  • 8) Acceptance Testing.

Is UI testing non-functional testing?

“UX and UI testing are different types of testing and they are not used together. UX is a non-functional type of testing while UI is functional. There is no type of product where you can skip these types of testing

What is smoke and sanity testing?

Smoke test is done to make sure that the critical functionalities of the program are working fine, whereas sanity testing is done to check that newly added functionalities, bugs, etc., have been fixed. The software build may be either stable or unstable during smoke testing.

What is functional vs non-functional?

What is functional vs non-functional?

Functional requirements define what a product must do, what its features and functions are. Nonfunctional requirements describe the general properties of a system. They are also known as quality attributes.

What is functional testing type?

Functional testing is a type of testing that seeks to establish whether each application feature works as per the software requirements. Each function is compared to the corresponding requirement to ascertain whether its output is consistent with the end user’s expectations.

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Author: Pallavi

Business Analyst , Functional Consultant, Provide Training on Business Analysis and SDLC Methodologies.

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