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What is Functional Testing?

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What is Functional Testing?

Looking to understand the basics of functional testing and its various types? This article provides a comprehensive overview of functional testing, including its definition and importance in software testing. You'll also learn about the different types of functional testing and how each type serves a unique purpose in ensuring the quality and functionality of software applications. Read on to expand your knowledge of functional testing and enhance your software testing skills.


Software testing cannot be complete without functional testing as it plays a vital role in ensuring the smooth operation of an application or system. Specifically, this testing involves meticulously validating whether the software application or system aligns with the business's or end-users' functional requirements. Additionally, this testing aims to ensure that the application or system is performing as intended and delivering the desired output. Through comprehensive testing, developers can ascertain that the software application or system fulfills the specifications and requirements stipulated by the stakeholders.


What is Functional Testing? 

The term Functional testing is a vital software testing process that checks whether the software application or system meets the functional requirements and specifications set by the stakeholders. 


To put it bluntly, functional testing answers, “Does the software do what it’s supposed to do?” It involves testing various aspects of the software application, such as user interface, database, APIs, and other functions, to ensure they function correctly and deliver the desired output.


Functional vs Non-functional Testing

Two critical types of software testing that are essential for ensuring the quality and reliability of software products or systems are functional testing and non-functional testing. Here is how they both are different.


Functional Testing 

This involves testing the software system’s behavior against the specified requirements or functional specifications. This testing ensures that the system meets its requirements and performs as expected. Creating test cases based on functional requirements and the execution of those test cases to ensure that the software functions correctly typically involve this testing technique.


Examples of functional testing include unit testing, API testing, regression testing, and security testing. 


Non-Functional Testing

On the other hand, the software testing team focuses on testing the system’s quality attributes during non-functional testing. This testing technique includes testing the software system’s performance, scalability, usability, reliability, and security. This testing is critical to ensuring the software system is functional and meets the end users’ expected quality standards.


Examples of non-functional testing include performance, load, stress, and usability testing.

Web: https://www.qaoncloud.com/what-is-functional-testing-types-examples/

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