Best Practices in Software Functional Testing

For the effective and reliable functioning of software, it is important that all aspects and features of the software perform as required by the end-user or business. This is where Software Functional Testing becomes extremely important in ensuring that the software meets the defined requirements and expectations of the end user. The process of Software Functional Testing includes evaluation of each of the features of the software and comparison with the defined requirements/needs. During the testing process, a sample input is provided to the software to check for deviations from the requirements. This also incorporates a check on the user-friendliness of the application by inspecting the navigation of the application.

Best Practices followed in Software Functional Testing ensure quality output by executing,

1. Unit Testing to achieve every line of code that performs successfully: In this practice, every function is verified by at least one test case. Statements of each function is covered by at least one test case. Every path through the code is covered by at least one test case.
2. Functional Testing to achieve every function that produces its respected expected outcome: Typically, in case of majority of the projects, it is not possible to test every functional aspect of a software. In such scenarios, functional testing goals are defined that are suitable for the application. This process helps in prioritizing functions that are critical and have high utility.
3. System Testing to achieve functions that integrate to deliver the business result goal: With System Testing, functional tests across applications can be performed. This helps in assuring that the elements of the application integrate to meet the desired business goal. This practice helps in identifying the critical elements that need integration.
4. Regression testing to achieve an end result that is free of any adverse effects by changes made: Regression testing makes sure that the application works successfully and is free of bugs after changes in software. The goals of regression testing include verification of outcome to check if the existing features of the software are affected by adding new features to the software.

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