Catalog
method#Quality Assurance#Product#Delivery#Governance

User Acceptance Testing (UAT)

User acceptance tests verify that a system meets requirements and business goals from the end-user perspective.

User Acceptance Testing (UAT) is a structured process where real users validate that a solution meets their requirements.
Established
Medium

Classification

  • Medium
  • Business
  • Organizational
  • Intermediate

Technical context

Test management tool (e.g., TestRail)Issue tracking system (e.g., Jira)CI/CD pipeline for build deployment

Principles & goals

Test user-centred: involve real users and realistic scenarios.Define and communicate clear acceptance criteria beforehand.Plan early: integrate UAT into release plan with time buffers.
Build
Domain, Team

Use cases & scenarios

Compromises

  • Unclear acceptance criteria lead to inconsistent decisions.
  • Too small or non-representative test groups give misleading signals.
  • UAT is treated as a formality and real problems are overlooked.
  • Include real users and realistic scenarios.
  • Use clear, measurable acceptance criteria.
  • Automate preparatory regression tests to focus UAT.

I/O & resources

  • Release build in test environment
  • Acceptance criteria and test scripts
  • Representative end users as testers
  • Acceptance decision with rationale
  • Prioritized list of defects found
  • Logs and feedback for product improvement

Description

User Acceptance Testing (UAT) is a structured process where real users validate that a solution meets their requirements. UAT provides final validation before product release, focusing on end-to-end scenarios, business value and acceptance criteria.

✔

  • Reduces risk of product or business process failures.
  • Ensures business acceptance and increases stakeholder confidence.
  • Identifies usability and integration issues before production.

✖

  • Dependence on available end users can delay schedules.
  • Not all technical non-functional aspects are covered by UAT.
  • Results are subjective and require clear evaluation rules.

  • Acceptance rate

    Share of test cases accepted by end users.

  • Defect discovery rate

    Number of new critical defects found during UAT per cycle.

  • Time to acceptance

    Average time until a test group accepts a feature.

UAT in online banking rollout

Bank conducted UAT with selected customers to validate payment flows and security messages in near-production.

B2B SaaS feature release

Product team ran UAT sessions with key accounts, identified usability issues and prioritized remediations.

Pilot for mobile app in test market

Before broad rollout a pilot group in a test market was used to measure adoption and performance.

1

Define acceptance criteria and test scope.

2

Recruit and brief end users as testers.

3

Provide stable test environments and data.

4

Conduct UAT sessions and capture findings.

5

Evaluate, prioritize and decide on release.

⚠️ Technical debt & bottlenecks

  • Missing automated regression increases manual UAT effort.
  • Insufficient test data management processes.
  • No standardized reporting for UAT results.
Availability of business usersTest data and test environmentsCoordination between product and operations
  • Only developers perform UAT instead of real users.
  • UAT is performed only after production launch.
  • Lack of prioritization leads to ignoring critical findings.
  • Users are not sufficiently briefed; results become unusable.
  • Test environment differs significantly from production.
  • Time pressure leads to superficial acceptance.
Domain business process knowledgeBasic testing and defect documentation skillsCommunication and facilitation skills
Business-critical processes must be validatedIntegration with third-party systems requires end-to-end testsRegulatory requirements for evidence documentation
  • • Limited test environments with production-like data
  • • Confidentiality requirements with pilot customers
  • • Time constraints in release windows