Tilaajahyväksyntätestaus

Tilaajahyväksyntätestaus, often abbreviated as UAT (User Acceptance Testing), is the final phase of software testing before a product is released to the market or deployed to end-users. This stage focuses on verifying that the system meets the business requirements and user needs from the perspective of the intended audience. It is essentially a check to ensure the software works in the "real world" scenario it's designed for.

During Tilaajahyväksyntätestaus, actual users or representatives of the client business perform tests on the system. They execute predefined test cases or explore the application's functionality to confirm that it functions as expected and delivers the desired business value. This type of testing is crucial because it catches issues that might have been overlooked during earlier testing phases, such as integration testing or system testing. These issues could range from usability problems to minor functional discrepancies that significantly impact the user experience.

The primary goal of Tilaajahyväksyntätestaus is to gain confidence that the software is ready for deployment. It serves as a final gatekeeper, ensuring that the investment made in developing the software will yield the expected benefits. Successful completion of Tilaajahyväksyntätestaus typically signifies that the client or end-users formally accept the software, paving the way for its release. Conversely, if significant issues are found, the software may be sent back for further development or bug fixing before a re-test.