Introduction
User Acceptance Testing (UAT) is the final phase of software testing before the application goes live. It ensures that the system meets business requirements and user expectations.
What is User Acceptance Testing (UAT)?
UAT is a testing phase where end users or clients validate the system to confirm it works according to their needs. It focuses on business scenarios rather than technical validation.
Only after successful UAT approval is the application released to production.
Why UAT is Important
- Ensures business requirement validation
- Confirms user satisfaction
- Reduces production defects
- Provides final client approval
Types of User Acceptance Testing
- Alpha Testing
- Beta Testing
- Business Acceptance Testing (BAT)
- Operational Acceptance Testing (OAT)
- Contract Acceptance Testing
UAT Process
- Define business requirements
- Create UAT test plan
- Prepare UAT environment
- Execute business test scenarios
- Report defects
- Approve or reject system
Real-World Examples
Example 1: E-commerce Application
- Client verifies product search
- Validates checkout process
- Confirms invoice generation
Example 2: Banking Software
- Business users verify account creation
- Validate transaction flow
- Confirm interest calculation
Roles in UAT
- Business Users
- Client Representatives
- Product Owners
- QA Support Team
Advantages of UAT
- Ensures product meets business goals
- Improves stakeholder confidence
- Minimizes production risk
- Validates real-world scenarios
UAT Interview Questions
What is UAT?
UAT is the final testing phase where end users validate the system against business requirements.
Who performs UAT?
Business users or clients perform UAT with QA support.
When is UAT performed?
After system testing and before production release.
Frequently Asked Questions
Is UAT part of SDLC?
Yes, UAT is part of the testing phase before deployment.
What happens if UAT fails?
Defects are fixed and UAT is re-executed before approval.