What is a SIT and UAT?
UAT and SIT testing are the two different levels of testing in the application testing phase of QA. UAT stands for User Acceptance Testing and SIT stands for System Integration Testing.
What is SAT vs UAT?
System integration testing is done mainly to test the interface requirements of a system. Whereas user acceptance testing is done to verify the system functionality as a whole by an end-user. Appropriate test cases have to be written for both the testing.
What comes first SIT or UAT?

Software system integration testing. For software SIT is part of the software testing life cycle for collaborative projects. Usually, a round of SIT precedes the user acceptance test (UAT) round. Software providers usually run a pre-SIT round of tests before consumers run their SIT test cases.
What is fit sit testing?
System integration approaches Final integration testing or system integration – In the final stage of integration where all components are incorporated is known as System Integration Testing (SIT) or Final Integration Testing (FIT).
What happens in sit testing?
System Integration Testing (SIT) is the overall testing of the whole system which is composed of many sub-systems. The main objective of SIT is to ensure that all software module dependencies are functioning properly and the data integrity is preserved between distinct modules of the whole system.

What is UAT prod SIT?
SIT — System Integration Test [Software developer and QA engineer] UAT — User Acceptance Test [Client] PROD — Production [Public user]
What is SAT acceptance test?
Site Acceptance Testing (SAT) provides an opportunity for final confirmation that the performance experienced during the Factory Acceptance Testing (FAT) is repeated after the systems are installed onsite, ensuring nothing has changed or was damaged during shipment and installation.
Why is sit testing important?
The main function of SIT is to do test dependencies between different system components and hence, regression testing is an important part of SIT. For collaborative projects, SIT is a part of STLC (Software Testing lifecycle).
What happens SIT phase?
System Integration Testing (SIT) is performed to verify the interactions between the modules of a software system. It deals with the verification of the high and low-level software requirements specified in the Software Requirements Specification/Data and the Software Design Document.
How do you do a SIT test?
How to Perform System Integration Testing?
- #1) Data state within the Integration Layer.
- #2) Data state within the Database layer.
- #3) Data state within the Application layer.
- The image below on the levels of testing would make the flow from Unit testing to UAT clear to you:
What does SAT mean in software testing?
Site Acceptance Testing
Site Acceptance Testing (SAT) is the testing acceptance test of equipment and check of relevant documentation at the site of use of the equipment.