How does SIT and UAT differ?

 

System Integration testing is considered to be a combination of system testing and integration testing. The integrated products on which testing is performed checks the system compliance by taking into consideration the key requirements of functional and non-functional elements.

User acceptance testing is focused on evaluating a software product or application’s value from a user’s viewpoint. Based on the feedback, opinions and reviews provided by the user, necessary modifications and changes can be done to the product in order to further improve the overall quality of the software product.

In this article, you will get to know what are the differences between system integration testing and user acceptance testing.

What is System Integration Testing (SIT)?

The behavior of the overall system is evaluated in an integrated hardware and software environment by conducting this testing method. It is performed on a complete integrated system, so that the system’s compliance can be evaluated with its specified requirements. The interactions that take place between the modules of a software system are evaluated by this testing method.

Both the high and low-level software requirements that are specified in the Software Design Document and Software Requirements Specifications document are verified.

The objective is to also make sure that all the software module dependencies are working as per the expected requirements. The relationship between different system components is thoroughly scrutinized.

 

What is User Acceptance Testing (UAT)?

It is a testing method that is performed by end-users in a real-time production environment. These users will test the usability, user experience, functionality and performance of the software product or application and then provide their valuable feedback. The insights, opinions and feedback provided by the users help in further improving the overall quality of the product.

UAT is performed to make sure that the software product or application is being built as per the business and user requirements. It is also known as “end-user testing” and is conducted in the final stage of the software development process before the product is going to be released. UAT is also performed to assess whether the product is built as per the market specific requirements.

 

Difference between System Integration Testing (SIT) and User Acceptance Testing (UAT):

System Integration testing	User Acceptance Testing
The interface requirements of a system are tested	The application is tested from an end-users perspective
Top-down approach, bottom-up approach, big bang approach and hybrid approach are the four techniques through which SIT can be done	Alpha and beta testing, Contract acceptance testing, operational acceptance testing and regulation acceptance testing are the testing mediums through which UAT can be done
The objective of SIT is to ensure that the functional requirements of the system or application are properly met	The objective of UAT is to ensure that clients and end-users are content with the software product or application
It is performed by testers and developers	It is performed by customers and end-users
It is performed  after unit testing and before system testing	It is performed at the final stage of the Software Testing Life Cycle (STLC) process
Problems like control flow, data flow etc., are focused and worked upon	Non-working features or functional requirements are focused and worked upon

 

Conclusion: If you are looking forward to implementing SIT or UAT or both for your specific project or projects, then do get connected with a professionally acclaimed software testing services company that has a resourceful and experienced team who will provide you with a tactical testing framework that is precisely in line with your project specific requirements.

About the author: I am a technical content writer focused on writing technology specific articles. I strive to provide well-researched information on the leading market savvy technologies.