User acceptance testing (UAT) is a formal process that occurs after alpha testing, where customers evaluate if the product meets their needs. It serves as the final step before application rollout and can be conducted by customers or end users in an environment that closely mimics real-world conditions. UAT includes alpha testing, where developers observe users directly, and beta testing, which occurs post-implementation in a live environment with issues reported regularly to developers.

1. User Acceptance Testing
It is a formal activity. After alpha testing, customer will accept the product if the product fulfills
customers needs. User Acceptance Testing is often the final step before rolling out the
application. It conducted by customers or by end users. Environment should closely resemble
the real world or production environment.
Type of User Acceptance Testing
 Alpha Testing
 Beta Testing
Alpha Testing
 End user of the product checks the product
 Developer observe and records error and usage problem.
 Tests are conducted in a production environment.
Beta Testing
 Starts post implementation
 Application environment is live and cannot be controlled by developer.
 Application usage problems are reported to developer at regular intervals.