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Functional Testing Vs Non-Functional Testing

In General
October 20, 2020


According to a report, app crashes cause 71% of uninstalls. Other reasons that compel users to uninstall apps are page response time, confusing UI, and battery consumption. This indicates the importance of functional testing as well as non-functional testing in delivering a user-friendly app. So let’s examine functional testing.

What Is Functional Testing?

Functional testing is done to make sure that the functions of an app are working in conformance with the required specification. It is black box testing and does not go into the details of the source code of the app. In functional testing the focus should be on the user-friendliness of the main functions of the app.

To perform functional testing, first we need to identify the test input and compute the expected outcomes with the selected test input values. Then we execute the test cases and compare the actual data to the expected result.

Functional Testing

Functional Testing Types

Let’s have a look at types of functional testing for mobile…



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