Functional Testing evaluates individual and cohesive behavior functions of a software system to verify that they adhere to pre-defined specifications. It tests the functional accuracy, interoperability of subsystems, and compliance with pre-defined standards in the context of functional and business requirements.

Performance testing is a non-functional testing technique that exercises a system and then, measures validates and verifies the response time, stability, scalability, speed and reliability of the system in production-like environment. 

In this article, we will assess the differences between Performance and Functional testing.

Conclusion

On close observation of the above table, it can be noticed that both the testing types complement each other. Performance testing validates that application software can handle real-time scenarios and address issues, if any, to deliver a robust and efficient product to the end users. Functional testing on the other hand ensures the validity of software as per the functional and business requirements. Click to know more about this article: Performance Testing Vs Functional Testing

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