It is something to define, what is wrong and what is right. To pluck out the flaws and lead it to near perfection. We find this out by listing the functional requirements of the software.
We then check if the software fulfills all these requirements. To check if the software conforms to these requirements we use functional testing.
It is also used to check if the application is fulfilling the demands of the business itself.
There are two types of techniques to carry out functional testing:
Testing based on requirement: Checks the software for all functional requirements, using them as the basis for the test.
Testing based on business demands: Conducts testing keeping in mind the business perspective, with respect to the demands of the consumers.
Testing is crucial to the System development lifecycle process. There are different types of testing and a tester needs to have the know-how of all of them, even if they are not conducting all of them.
The testing realm is unending that many people are on board to carry out these various tests.
There are many categories in functional testing. Functional testing comprises of:
- Unit testing
- Smoke testing
- Sanity testing
- Regression testing
- Usability testing
- Integration testing.
We are here to guide you through the fundamentals of the process of functional testing, leading you to a better software development experience.
Procedure for testing
To address questions about the capabilities of a software application functional testing services are very important. By testing, we can identify the actions users will be able to conduct.
There are three main steps to carrying out the testing process. First, you create the test data, then you carry out the test, and lastly, you compare expected results to actual results.
For functional testing, we can use the Black Box technique. Using this technique, the tester is unaware of the internal logic of the system undergoing testing. Functional testing is normally done during the stages of System Testing and Acceptance Testing.
The first step is to determine the functionality of the application we are going to test. We will test the main functionalities of the software as well as an error condition, messages, usability testing.
The next step is to create input data that we will enter into the system to check for functionality against a set of requirements. Then we input data into the system and see the response against the software requirements.
Then later on using functionality testing we determine the output response of software on the basis of software requirements. To check this we carry out the tests we prepare using these requirements.
We then compare the output that we receive after testing the output to the one that we were expecting from the software. It allows us to see if the functionality is working properly or not.
Automation of Functional Testing
Automation of testing is the best option when the test is extensive and needs to be done multiple times or needs a complex system setup. Tests that have chances of variation from release to release need actual human knowledge and are not suitable for testing automation.
Script maintenance costs can arise if the writing of the script tests is unsuitable for the tests. These scripts will ultimately face abandonment due to flaws in their designs.
Documentation
Test documentation is a smart move. With rapid developments and short breaks before new releases, we sometimes can think of overlooking documentation. Yet, it is too valuable to overlook.
When appropriate they help document the whole procedure of testing and also the completion of bugs reports that document regression tests.
It is important to realize the need for a variety of talent across the realm of software development.
Over time functional testing is moving to agile development than the waterfall SDLC. Agile calls for a combination of quality and development with product management.
Using this approach, running test parallel for quality and development can help us benefit in both.
The most efficient way to get results from functional testing is to adjust the functions to the requirements of the business.
Once we recognize the requirements we can prioritize the individual tests accordingly. These tests need to be flexible to adjust to the variations in issues.
Failure to deal with the flaws in your software can make or break the impact of your product. That can lead to intense adjustments for end users if your application fails to perform as per the expectations.
Conclusion
Functional testing is very important to convert the customer needs to manifest into the application. Such that the application meets their requirements. If you release an application without testing it for bugs and flaws can lead to serious shortcomings in the future.
Doing all the types of functional testing at their appropriate time is good. By carrying the process of functional testing correctly you can obtain the best quality of the product and it will be efficient.
