An overview of the different software testing levels
Unit testing:
In the early development
process of the software, unit testing is carried out. The smallest part of the
software which can be tested is referred to as the unit. In this type of software
quality testing, each unit of the software is checked and the focus is
to determine if the code development is correct.
Integration testing:
Integration testing is
the next level of testing and here the focus is on checking if all the units
can function properly in a group. The purpose of this testing is to check if
there are any discrepancies in the interaction of the different units of the
software. These tests are run by developers by making use of integrated and
automated tools.
System testing:
In system testing the
entire software is tested and here the security, performance of the software etc
are tested. This test determines the quality standard of the software and it
checks if the product is fulfilling the technical and functional criteria. This
type of testing has to be conducted by technical professionals with in-depth
knowledge. The testing has to be carried out in an environment that is close to
the actual environment where the final product is going to be used.
UAT or the User
Acceptance Testing:
UAT is also known as
End-to-End testing and this is the last step of the software testing process.
Here the testing is carried out to check if the testing is as per the
requirements of the end user. In this testing, the overall quality of the
software is tested and it is decided whether the product can be launched in the
market. In this testing alpha and beta testing are done. This can be done by
the product owner or by a small group of end users. Automated tools as well as QA
manual testing are used for UAT.
Quality testing of the
software is a highly specialized process and it has to be done perfectly. Only
with proper quality testing, it is possible to know if there are any bugs in
the system and the same has to be removed. The testing ensures that the product
meets the end user's expectations.
In case the software
development company does not have an in-house team of testers then there is no
need to worry. There are some professional companies to whom one can outsource
the quality testing requirement. Just make sure that you choose the right
software testing company that has a good reputation.
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