Today, the need of high-quality software is rising in market and therefore, before releasing the software in the market, developers, QA, and software testing teams perform a variety of tests on the software to ensure its robustness and readiness for release. The software testing has four levels namely, unit testing, integration testing, system testing, and user acceptance testing. Each one of these software testing methods holds immense potential to uplift the quality of software. Let’s now look at two of these software testing methods i.e.; system integration test and user acceptance test in detail and see how these tests differ from each other.
What is SIT?
It is a type of software testing method in which the whole system or software is tested as a whole once the unit tested modules/individual components of the software are integrated. The main integration test is to check that these modules are properly integrated and system work fine after the integration of these modules
What is UAT?
It is the last step in software testing lifecycle in which the software is tested by the end-user/client to ensure that the product meets business requirements and fulfils all specifications as stated in SRS and FDD documents. This test helps to ensure that the product fulfils all business and client expectations and is ready for release.
How does SIT and UAT testing differ?
Here are some major points of difference between SIT and UAT testing types:
|Point of difference||UAT||SIT|
|When is it executed?||The user acceptance test is the last step of the software testing process||A system integration test is performed after the unit test but before the system test|
|Why is it executed?||This test helps teams to get client’s approval before releasing the product||This test ensures that all the units of the software are properly integrated and functioning as expected|
|Who executes it?||Performed by client/end-user||Performed by testers or developers|
|What are the different types of approaches?||Alpha & Beta TestingContract Acceptance TestingRegulation Acceptance TestingOperational Acceptance TestingBlack Box Testing||Big-bang integration testingIncremental testingTop-down integration testingBottom-up integration testingHybrid/sandwich integration testing|
|What kinds of issues are resolved?||Identifies problems related to functionalities and features||Identifies problems related to control flow, data flow, etc.|
Conclusion: There are various types of software testing methods that help businesses to ensure the quality of the product before it is released. SIT and UAT are two such software testing types that play an important role in improving the quality of the product and preparing it for release. Leverage system integration test and user acceptance test from a next-gen QA and software testing services provider to achieve quality software.