Common Challenges In Non-Functional Testing And How To Overcome Them

Non-Functional Testing

Non-functional testing is an important aspect of app testing that focuses on verifying the non-functional requirements of an application. These requirements are related to performance, reliability, scalability, and other aspects that are critical to the user experience. However, there are several challenges that can arise during non-functional testing that can impact the effectiveness of the testing process. In this article, we will explore some of the common challenges in non-functional testing and provide tips on how to overcome them.

Common Challenges In Non-Functional Testing

Lack Of Clarity In Non-Functional Requirements

One of the biggest challenges in non-functional testing is the lack of clarity in non-functional requirements. Often, these requirements are vaguely defined or not well understood by the testing team. This can lead to ambiguous test cases and inaccurate test results.

To overcome this challenge, it is important to involve all stakeholders in the requirements gathering process and ensure that the non-functional requirements are clearly defined and understood by everyone involved in the testing process. This can be achieved by conducting workshops and brainstorming sessions to discuss the requirements and ensure that they are well-defined.

Limited Access To Testing Environment

Another challenge in non-functional testing is limited access to the testing environment. In some cases, the testing environment may not be available or may be shared with other teams, which can lead to delays in testing and inaccurate test results.

To overcome this challenge, it is important to plan ahead and ensure that the testing environment is available and properly configured before testing begins. This may involve working closely with the infrastructure team to set up the necessary hardware and software configurations and ensure that the environment is stable and reliable.

Lack Of Expertise In Non-Functional Testing

Non-functional testing requires specialized skills and expertise, particularly in areas such as performance testing and security testing. However, many testing teams may not have the necessary expertise or resources to conduct these types of tests effectively.

To overcome this challenge, it is important to invest in training and development for the testing team to build the necessary skills and expertise. This can include providing access to training courses, certifications, and other resources to help the team build their skills.

Difficulty In Reproducing Issues

Another challenge in non-functional testing is the difficulty in reproducing issues. Non-functional issues can be particularly difficult to reproduce, as they may only occur under certain conditions or at certain times.

To overcome this challenge, it is important to use tools and techniques that can help capture and analyze data related to the issue. This can include using performance monitoring tools to capture metrics related to performance issues, or using log analysis tools to capture data related to security issues. By capturing and analyzing this data, you can better understand the root cause of the issue and develop a plan to address it.

Lack Of Test Data

Effective non-functional testing requires a comprehensive set of test data that reflects the real-world scenarios and conditions that the application will be used in. However, generating and managing this test data can be a significant challenge for testing teams.

To overcome this challenge, it is important to invest in tools and techniques that can help generate and manage test data effectively. This can include using test data management tools to create and manage test data sets, or using data masking tools to ensure that sensitive data is protected during testing.

Lack Of Proper Tooling And Infrastructure

Another common challenge in non-functional testing is the lack of proper tools and infrastructure. Non-functional testing requires a lot of different tools to be set up and managed, such as performance testing tools, security testing tools, and monitoring tools. Without proper tools, it can be challenging to effectively test and measure non-functional requirements.

To overcome this challenge, it’s essential to invest in the right tools and infrastructure. There are many commercial and open-source tools available for non-functional testing, and it’s important to choose the right ones based on your specific requirements. It’s also crucial to have a well-defined testing infrastructure that can support the different types of non-functional testing that need to be performed.

Finally, communication and collaboration are critical in overcoming the challenges of non-functional testing. Testers need to work closely with developers, product owners, and other stakeholders to understand the non-functional requirements and ensure they are properly tested. It’s important to have clear communication channels and a collaborative environment where everyone is working towards the same goal of delivering a high-quality product.


Non-functional testing is a critical aspect of app testing that requires specialized skills, expertise, and resources. By understanding and addressing the common challenges in non-functional testing, testing teams can ensure that their applications are thoroughly tested and meet the required non-functional requirements. By investing in training, tools, and best practices, testing teams can improve the effectiveness and efficiency of their non-functional testing efforts and ensure the quality of their applications.

Also Read: Testing IT Products: Why It Is Difficult & How Crowdsourcing Can Help

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