Function testing VS Non functional testing
by Stella Murugesan Digital Marketing AnalystSoftware testing is one of the most
important processes of the software development life cycle. If you skip this
step, then maybe you will fail to provide your end users the best experience of
the application. It helps both the developer and the test engineers to
determine the functionality, performance, quality, and other important features
of the application. There are mainly two types of the testing procedures, which
are functional testing and nonfunctional testing. Both of them are describing
themselves by their names itself. Functional testing is used to test the
application to ensure the functionality of the applications. Whereas the
non-functional testing process is used to make sure that the facts which are
not covered by the functional testing are covered properly. To understand the
process and to know why both of them are different from one another, please
read the article till the end, maybe you will get answers to most of your
questions.
1. Testing
approaches
Testing approaches used in the testing
processes made them different from one another. If we talk about functional
testing, we must say that this process uses black-box testing approaches. This
means that the testing process is completely dependent upon the requirements of
the client; in other words, we can say that the process accepts the client’s
requirements as the input data. Due to based on the black box testing approach
it allows to test all the functions of the application independently to ensure
that whether the features of the application are working fine or not.
On the other hand, non-functional testing
focuses on testing the software based on the non-functionality features of the
application like reliability, scalability, performance, loading speed, etc. The
main objective of the testing process is to make the application content
relevant and readable. It also evaluates the load and condition testing to make
sure the application loading speed is good or not.
2. Testing
area
Both the testing methods covered different
areas of the application to generate intact results. First of all, lets us
check the area covered by the functional testing.
•
Functional testing usually checks the functions of the application. It
has no concern with the code of the application, but it has a concern with the
output of the code of the application.
•
It also ensures the usability of the application. It checks whether the
application is serving its purpose completely or not.
•
It also helps the test engineers to check that Is the application is
easily accessible on all types of network and platforms or not.
•
To check the error conditions is also the responsibility of the testing
process. This part includes 404 error pages, JavaScript error messages, etc.
If we look at the area covered by the non-
functional application, then you will see the, or we can opposite image here.
•
It ensures the security of the application in the terms of network
usability.
•
It ensures that the application is flexible to use on different
platforms.
•
It helps the test engineers to check that whether the application is
working efficiently and giving the reliable results or not.
•
It also ensures the interoperability of the application.
3. Executions
Execution methods of the testing approach
also make them different from one another. The functional testing executes the
testing process on the basis of the functional requirements and functions of
the testing process. During execution, it also checks that whether the
functional requirements of the end user or the client from the applications are
fulfilled or not.
In the other hand if we talk about the
non-functional testing, then the execution of the process is dependent upon the
functional traits and various aspects of the application. It helps to evaluate
whether the expectations of the client from the application are fulfilled or
not. It has no concern with the functions of the application.
4. Testing
time
The testing time takes by both the
application is one of the major aspects to make them different from one
another. Functional software testing services is one of the easiest
processes of testing. This is the reason why the process takes less time to
generate the testing results.
But as compared to the functional testing,
non-functional testing is considered as a complex and difficult process. This
is the reason why it takes lots of time to test the application and generate
the testing reports. The reason behind this is that the process is dependent
upon the user expectations, which are very hard to meet in reality.
5. Testing
performance
The following are the features of the
functional testing to determine the testing performance of functional testing.
•
It can follow both white boxes as, and black box testing approaches. But
mainly it uses the black box testing.
•
It includes various levels of testing, like integration testing, smoke
testing, usability testing, etc.
The below-stated features are here to
figure out the testing performance of the nonfunctional testing.
•
It only follows the white box testing processes. This means it has no
concern with the requirements of the users.
•
It also includes various testing levels like load testing, compatibility
testing, performance testing, maintainability testing, etc.
Conclusion
Though both the testing methods and
categories are different from each other, but both are an integral part of the offshore
software testing services. It is very important to perform both the
testing procedures to finish the product like a masterpiece. If you do not
provide your customers with the best products, then they will never prefer you
or your organization for making more applications. And also they will; give
your negative feedback in the market.
SO along with the development always give
equal importance to the testing as well. Hence both functional and
non-functional testing processes are very important for the test engineers to
ensure that the customers will get the best user experience with creative and
unique features of the application. So, never skip any of them and give
importance to all your projects or applications.
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Created on Aug 26th 2019 07:04. Viewed 449 times.