Introduction: Why Non-Functional Testing Matters
In today’s fast-paced digital world, users expect software applications to be reliable, secure, and high-performing. While functional testing ensures that a system meets the specified requirements, non-functional testing focuses on performance, security, usability, and other crucial aspects that determine the overall quality of the software. Without non-functional testing, applications can suffer from slow performance, security vulnerabilities, and poor user experiences.
If you are looking to build a career in software testing, understanding non-functional testing is essential. Our QA Testing Online Training at H2K Infosys equips learners with practical knowledge of both functional and non-functional testing, preparing them for a successful career in Quality Assurance (QA).
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.
What is Non-Functional Testing?
Non-functional testing assesses how well a software system performs rather than what it does. It evaluates the system’s performance, reliability, usability, security, and other key attributes that impact the user experience and business goals.
Key Objectives of Non-Functional Testing:
The objectives of any type of testing will identify the bugs in the application. Non functional testing ensures the usability, performance, reliability, maintainability, portability and security of the application.
- It increases usability, security, flexibility of the application.
- Ensure customer satisfaction with smooth operation.
- It provides effective, successful installation, setup, execution, management and maintenance of the application.
- Improve software performance and scalability
- Ensure security against cyber threats
- Enhance usability and user experience
- Verify reliability and availability under load
- Validate compatibility across different devices and environments
- Ensure regulatory compliance with industry standards
Types of Non-Functional Testing
1. Performance Testing
Performance testing evaluates the speed, responsiveness, and stability of an application under different conditions. It includes:
- Load Testing: Measures how a system behaves under expected user loads.
- Stress Testing: Determines system behavior under extreme conditions.
- Scalability Testing: Tests how well a system can scale when demand increases.
- Endurance Testing: Ensures stability over prolonged usage.
- Volume Testing: Assesses how the system handles large amounts of data.
Example: An e-commerce website experiences high traffic during a Black Friday sale. Load testing ensures the website remains functional even under a massive surge in users.
2. Load testing:
It is done to check whether the system can resist the pressure or load of many users operating the application all the time. The production load is replicated in the test environment in order to get the proper specific results. Software performance is tested with different number of users.
3. Usability Testing
Usability testing ensures the application is user-friendly and intuitive.
- Ease of Use: Is the software simple to navigate?
- User Satisfaction: Do users find the application convenient?
- Accessibility: Is the software accessible to users with disabilities?
- Error Handling: Verifies if error messages are clear and helpful.
Example: A mobile app undergoes usability testing to determine if users can easily complete key tasks.
4. Stress testing:
Stress testing is completed is to push the appliance beyond its capabilities to watch how it reacts. This testing is done where there is load which is generated is more than the applications manage. The performance of the software is tested with different number of servers.
5. Compatibility Testing
Compatibility testing ensures the software works seamlessly across different devices, browsers, operating systems, and networks.
- Browser Compatibility: Works smoothly in Chrome, Firefox, Edge, etc.
- Device Compatibility: Performs well on desktops, tablets, and smartphones.
- Operating System Compatibility: Functions correctly on Windows, macOS, and Linux.
- Network Compatibility: Ensures stable performance on different network conditions (Wi-Fi, 4G, 5G, etc.).
Example: A web-based SaaS application is tested across multiple browsers to ensure consistent performance.
6. Volume testing:
This type of testing is done to verify the storage requirements and capabilities of the application. When the database contains huge amount of data or if its size is large, performance of the application and its ability to exchange data and information are tested with volume testing.
7. Reliability and Maintainability Testing
- Reliability Testing: Verifies the system can run without failure for a specified time.
- Maintainability Testing: Assesses how easily the system can be maintained and updated.
- Recoverability Testing: Evaluates how quickly a system can recover from failure.
Example: A healthcare management system is tested to ensure 24/7 availability without failures.
8. Compliance Testing
Compliance testing ensures that software meets legal, regulatory, and industry standards.
- GDPR Compliance: Ensures data protection and privacy laws are met.
- HIPAA Compliance: Verifies healthcare software meets industry regulations.
- PCI DSS Compliance: Ensures secure handling of payment transactions.
Example: A fintech application is tested for compliance with PCI DSS to ensure secure online transactions.
9. Security testing:
Security testing identifies vulnerabilities and ensures the application is protected against cyber threats.
- Penetration Testing: Simulates real-world attacks to detect security loopholes.
- Vulnerability Scanning: Uses automated tools to identify security flaws.
- Authentication Testing: Verifies if user authentication and authorization are implemented correctly.
- Security Auditing: Reviews the system for compliance with security policies.
Example: A banking app undergoes penetration testing to detect security flaws before its launch.crease and application may crash, this scenario shows how important to test the application with non-functional testing aspects. Another aspect is login page of flight booking website. Consider the situation where you want book a flight ticket and you get a response as ‘servers are busy’ is the best example.
Here it is tested with the valid credentials like how much time did it take when many users login at the same time. This verification ensures that how the system handles traffic and load.
Advantages of Non-functional testing:
- It covers the testing of characteristics which functional testing cannot cover.
- It makes sure that the application runs efficiently and is reliable enough.
- It checks the security of the application.
Importance of Non-Functional Testing in QA
Non-functional testing plays a vital role in delivering high-quality software. Some key benefits include:
- Enhanced User Experience: Ensures intuitive design, faster response times, and seamless navigation.
- Business Growth: Reliable and secure applications attract more users and increase customer satisfaction.
- Risk Mitigation: Identifies security vulnerabilities and performance bottlenecks early in development.
- Regulatory Compliance: Ensures the software adheres to industry standards.
- Cost Efficiency: Detecting issues early reduces the cost of fixes in production.
How H2K Infosys Prepares You for a Career in QA Testing
At H2K Infosys, we offer a Quality Assurance Tester Course that provides hands-on training in both functional and non-functional testing. Here’s what you’ll gain:
1. Comprehensive Curriculum
Our course covers all essential aspects of QA Testing Online Training, including:
- Manual Testing & Automation Testing
- Performance Testing with JMeter
- Security Testing Fundamentals
- Usability and Compatibility Testing
- Test Management Tools (JIRA, TestRail)
- API Testing with Postman
2. Hands-On Learning with Real-World Projects
Gain practical experience through live projects and case studies to apply your learning in real-world scenarios.
3. Expert Instructors & Industry Insights
Our trainers are experienced professionals who provide industry insights and best practices to help you excel in your QA career.
4. Job-Oriented Training & Certification
We prepare you for the job market with resume-building sessions, mock interviews, and certification guidance to land high-paying QA roles.
Key Takeaways
- Non-functional testing ensures a software application is reliable, secure, scalable, and user-friendly.
- Types of non-functional testing include performance, security, usability, compatibility, and reliability testing.
- Industries like e-commerce, banking, healthcare, and fintech rely on non-functional testing to deliver top-notch user experiences.
- Enrolling in H2K Infosys’ QA Online Training will help you gain expertise in non-functional testing and kickstart your career in software testing.
Start Your QA Career Today!
Enhance your skills with QA Tester Training at H2K Infosys and become a certified QA professional. Enroll now and master non-functional testing for a successful QA career!
17 Responses
Non Functional testing:
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.
Objectives:
The objectives of any type of testing will identify the bugs in the application. Non functional testing ensures the usability, performance, reliability, maintainability, portability and security of the application.
1. It increases usability, security, flexibility of the application.
2. Ensure customer satisfaction with smooth operation.
3. It provides effective, successful installation, setup, execution, management and maintenance of the application.
There are many types of non-functional testing:
1. Load testing
2. Stress testing
3. Volume testing
4. Failover testing
5. Security testing
Advantages of Non-functional testing:
1. It covers the testing of characteristics which functional testing cannot cover.
2. It makes sure that the application runs efficiently and is reliable enough.
3. It checks the security of the application.
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.
Objectives:
The objectives of any type of testing will identify the bugs in the application. Non functional testing ensures the usability, performance, reliability, maintainability, portability and security of the application.
• It increases usability, security, flexibility of the application.
• Ensure customer satisfaction with smooth operation.
• It provides effective, successful installation, setup, execution, management and maintenance of the application.
There are many types of non-functional testing:
1. Load testing:
2. Stress testing:
3. Volume testing:
4. Failover testing:
5. Security testing:
Here it is tested with the valid credentials like how much time did it take when many users login at the same time. This verification ensures that how the system handles traffic and load.
Advantages of Non-functional testing:
1. It covers the testing of characteristics which functional testing cannot cover.
2. It makes sure that the application runs efficiently and is reliable enough.
3. It checks the security of the application.
Non-functional testing is a software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.
Objectives:
1.It increases usability, security, flexibility of the application
2.Ensure customer satisfaction with smooth operation
3.It provides effective, successful installation, setup, execution, management and maintenance of the application
Types of non-functional testing are:
1. Load testing
2. Stress testing
3. Security testing
4. Volume testing
5. Fail over testing
Advantages of Non-functional testing are:
*It covers the testing of characteristics which functional testing cannot cover
*It makes sure that the application runs efficiently and is reliable enough.
*It checks the security of the application.
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.
There are many types of non-functional testing:
1. Load testing
2. Stress testing
3. Security testing
4. Volume testing
5. Fail over testing
Non functional testing focuses on good quality of the software mainly the non functional parameters like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.It can be done in all test levels.
Objectives of non functional testing:
The objectives of any type of testing will identify the bugs in the application.
1)It increases usability, security, flexibility of the application.
2)Ensure customer satisfaction with smooth operation.
3)It provides effective, successful installation, setup, execution, management and maintenance of the application.
Types of non-functional testing are:
1. Load testing
2. Stress testing
3. Security testing
4. Volume testing
5. Fail over testing
Advantages of Non-functional testing:
1) It covers the testing of characteristics which functional testing cannot cover.
2) It makes sure that the application runs efficiently and is reliable enough.
3) It checks the security of the application.
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. It focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc.
Nonfunctional testing is performed in all the test levels and covers almost all tests which are not done in functional testing.
It ensures the usability, performance, reliability, maintainability, portability and security of the application, and most of all this testing will identify the bugs in the application.
Different types of testing as follows:
1. Load testing:
2. Stress testing:
3. Volume testing:
4. Failover testing:
5. Security testing:
Non Functional Testing is a software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system.
OBJECTIVES :
increases usability, flexibility of the application
ensures customer satisfaction with smooth operations
provides effective, successful installation, set up, execution, management and maintenance of the application.
Types
1. Load Testing
2. Stress Testing
3.Volume Testing
4. Failover Testing
5. Security Testing
Advantages of Non Functional Testing :
1. covers the testing of characteristics which functional testing cannot cover
2. makes sure that the application runs efficiently and is reliable enough
3. checks the security of the application
Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing. The objectives of any type of testing will identify the bugs in the application. Non functional testing ensures the usability, performance, reliability, maintainability, portability and security of the application.
Types of non-functional testing:
1. Load testing
2. Stress testing
3. Security testing
4. Volume testing
5. Fail over testing
Advantages of Non Functional Testing are to check the reliability, usability and security of the sotware application
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc.
Objectives of non functional testing:
The objectives of any type of testing will identify the bugs in the application.
1)It increases usability, security, flexibility of the application.
2)Ensure customer satisfaction with smooth operation.
3)It provides effective, successful installation, setup, execution, management and maintenance of the application.
Types of non-functional testing are:
1. Load testing
2. Stress testing
3. Security testing
4. Volume testing
5. Fail over testing
Advantages of Non-functional testing:
1) It covers the testing of characteristics which functional testing cannot cover.
2) It makes sure that the application runs efficiently and is reliable enough.
3) It checks the security of the application.
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing. The objectives of testing are: It increases usability, security, flexibility of the application, Ensure customer satisfaction with smooth operation and It provides effective, successful installation, setup, execution, management and maintenance of the application.
Types of nonfunctional testing are: load testing- checks whether the system can resist the pressure or load of many users operating the application all the time, stress testing- to push the appliance beyond its capabilities to watch how it reacts, volume testing- to verify the storage requirements and capabilities of the application, failover testing- the working of redundancy mechanism when the system encounters the heavy load or sudden failure, security testing- to check how well an application preserves the data and itself and holds the data in the situations of virus attacks.
Advantages of non-functional testing are: it covers the testing of characteristics which functional testing cannot cover, it makes sure that the application runs efficiently and is reliable enough, and it checks the security of the application.
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system.This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.Objectives:
1.It increases usability, security, flexibility of the application
2.Ensure customer satisfaction with smooth operation
3.It provides effective, successful installation, setup, execution, management and maintenance of the application
Types of non-functional testing are:
1. Load testing
2. Stress testing
3. Security testing
4. Volume testing
5. Fail over testing
Advantages: it covers the testing of characteristics which functional testing cannot cover, it makes sure that the application runs efficiently and is reliable enough, and it checks the security of the application.
Non functional testing
This type of testing mainly focusses on non functional attributes like response time, scalability, usability, reliability, maintenance, performance, etc.
It covers all tests which are not done in functional testing.
There are many types of non functional testing:
1. Load testing
2. Stress testing
3. Volume testing
4. Failover testing
5. Security testing
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.
There are many types of non-functional testing:
1. Load testing
2. Stress testing
3. Security testing
4. Volume testing
5. Fail over testing
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.
Objectives:
The objectives of any type of testing will identify the bugs in the application. Non functional testing ensures the usability, performance, reliability, maintainability, portability and security of the application.
1. It increases usability, security, flexibility of the application.
2. Ensure customer satisfaction with smooth operation.
3. It provides effective, successful installation, setup, execution, management and maintenance of the application.
There are many types of non-functional testing:
1. Load testing
2. Stress testing
3. Volume testing
4. Failover testing
5. Security testing
Advantages of Non-functional testing:
1. It covers the testing of characteristics which functional testing cannot cover.
2. It makes sure that the application runs efficiently and is reliable enough.
3. It checks the security of the application.
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system .This type of testing is performed in all test level. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.
Objectives:
The objectives of any type of testing will identify the bugs in the application.
.It increases usability, security, flexibility of the application.
.Ensure customer satisfaction with smooth operation.
.It provides effective, successful installation, setup, execution, management and maintenance of the application.
There are many types of non-functional testing:
.Load testing
.Stress testing
.Volume testing
.Failover testing
.Security testing
Advantages of Non-functional testing:
.It covers the testing of characteristics which functional testing cannot cover.
.It makes sure that the application runs efficiently and is reliable enough.
.It checks the security of the application.
Non Functional testing:
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.
Objectives:
The objectives of any type of testing will identify the bugs in the application. Non functional testing ensures the usability, performance, reliability, maintainability, portability and security of the application.
1. It increases usability, security, flexibility of the application.
2. Ensure customer satisfaction with smooth operation.
3. It provides effective, successful installation, setup, execution, management and maintenance of the application.
There are many types of non-functional testing:
1. Load testing
2. Stress testing
3. Volume testing
4. Failover testing
5. Security testing
Advantages of Non-functional testing:
1. It covers the testing of characteristics which functional testing cannot cover.
2. It makes sure that the application runs efficiently and is reliable enough.
3. It checks the security of the application.
Non-functional testing is software testing which checks all the attributes of the system like memory leaks, performance or robustness of the system. This type of testing is performed in all test levels. Non functional testing focuses on good quality of the software mainly the non functional aspects like response time, security, scalability, usability, performance, reliability, maintainability, portability etc. It covers almost all tests which are not done in functional testing.
Objectives:
The objectives of any type of testing will identify the bugs in the application. Non functional testing ensures the usability, performance, reliability, maintainability, portability and security of the application.
1. It increases usability, security, flexibility of the application.
2. Ensure customer satisfaction with smooth operation.
3. It provides effective, successful installation, setup, execution, management and maintenance of the application.
There are many types of non-functional testing:
1. Load testing
2. Stress testing
3. Volume testing
4. Failover testing
5. Security testing
Advantages of Non-functional testing:
1. It covers the testing of characteristics which functional testing cannot cover.
2. It makes sure that the application runs efficiently and is reliable enough.
3. It checks the security of the application.