Functional Testing

Functional Testing

Why Functional Testing?

QATestLab performs functional testing to ensure the full functionality of the software. We verify whether products meet functional requirements without defects. For this, software functionality must meet specifications. Apart from verifying requirements, we also check the functionality of a product outside the specifications.

Functional testing aims to verify that the application works accurately under unexpected conditions and does not have any undocumented or unnecessary functionality as well as to discover the error handling capabilities of the product. By simulating real usage, functional testing detects any system deviations from the specification.

To provide an objective evaluation of the system functionality, we do not make any assumptions about the system structure and architecture. We create special conditions for functional testing based on user expectations and business requirements.

How we test

While performing functional QA testing, we assess core system functionality and also check if the software is user-friendly. For this, we conduct basic usability checking, accessibility verification for end users and we determine and test error conditions.

To make the functional testing process flow more efficient, we perform requirements-based checking based on prioritized criteria and start by testing the most critical features. We execute functional tests applying black box methodology.

In order not to miss software logic issues and avoid redundant checking, we thoroughly examine the specifications and system requirements. By prioritizing product features and tests, we evaluate critical functionality first.

If a bug is discovered and regression testing needs to be carried out, functional testing helps to trace already executed tests and recheck system functions. This approach allows us to understand the current quality of the solution and evaluate future steps.

functional testing process

Functional Testing saves reputation

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A product with low performance and poor functionality will reduce user confidence. It is important to satisfy user expectations and needs and serious functional issues and limitations with the product affect the vendor's reputation.

Software functional testing provides an evaluation of the system features based on the business and user requirements. Applying proven functional testing tools, we can fully replicate how systems are used in real life. Software errors are detected in the early stages and prevent the emergence of additional defects. Therefore, functional testing helps to release a stable product.