Acceptance Testing

• Testing technique performed to determine whether or not the software system has met the requirement specifications.
• Evaluate the system's compliance with the business requirements.

User Acceptance Testing

Business Acceptance Testing
Alpha Testing 
Beta Testing

Test the Functional Correctness and Completeness,Data Integrity,Data Conversion,Usability,Performance,Timeliness,Confidentiality andAvailability,Installability and Upgradability,ScalabilityDocumentation of the final system.

Acceptance testing is basically done by the user or customer although other stakeholders may be involved as well.

The goal of acceptance testing is to establish confidence in the system.