"Beavers are nature's architects and they build their homes in slow moving streams. They use their teeth to cut through logs and other natural debris and they use their tails to pat the mud on top to keep their homes secure. Their lodge will provide them with a dry safe home that is accessed through underwater entrances. When winter approaches, freezing water keeps them safe from predators."

Testing4success... where qa is second nature

functional testing overview

Functional Testing is a type of software testing that aims to validate the software against any given functional requirements or specifications. The purpose of Functional Testing is to ensure that each function of the software under test operates correctly by verifying the actual output with the intended output from the requirements.

when is functional testing performed?

Functional Testing is typically performed when development of a feature is complete and deployed to an environment where it can be tested. Functional testing can be performed without the entire product having been developed, just as long as there is enough functionality for a given feature to be testable.

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our functional testing process

Our QA team will provide you with ongoing communication every step of the way, ensuring that the functional testing is efficient and effective. The process diagram below will give you an idea of how it would typically work. If you have any questions at all, just let us know!

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"The dedication to quality and the ability to seek out solutions without being explicitly directed is what I continually find impressive about T4S."


Financial Services

"The attention to detail which T4S exhibited was awesome. They went above and beyond to test edge cases and use cases which we had not thought of."



"They have offered high-quality QA testing, and they customize it based on our client’s needs. They uncovered many edge cases and were very easy to work with."


Digital App Agency

"No matter the request, T4S provide the quality testing services we need at a reasonable price. I wish we found them years ago!"


Digital App Agency

"Very little was required on my end to gain such value. Fast, efficient, and with great communication. I can't see how it could have gone any easier. "


Online Retail

"Rapid interaction and quick resolution. Testing4Success have provided the best match for our requirements, fast response and good value"



Trusted QA service by businesses across the world.

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