UAT: Why User Acceptance Testing?

User Acceptance Testing (UAT) is a type of testing performed from the end-user or the customer to verify/accept the software system before moving the software application to the manufacturing environment. UAT is completed in the final period of testing after operational, integration, and system testing is done.

The most important purpose of UAT is to confirm the end to end business stream. It does NOT focus on Cosmetic errors, Spelling mistakes, or System testing. User Acceptance Testing is completed in a different testing environment with a production-like information setup. It's a type of black-box testing in which two or more end-users will be involved.

Who Performs UAT?

The need for User Acceptance Testing:

Once the software has undergone Unit, Integration, and System testing the need for Acceptance Testing might seem redundant. However, Acceptance Testing is needed because

• Developers code applications based on requirements document that is their"own" understanding of their prerequisites and may not be what the client needs from the software.
• Requirements changes during the project may not be communicated effectively to the programmers.
• Back in VModel, User acceptance testing corresponds to the necessary phase of this Software Development life cycle(SDLC).

Following are the entry criteria for User Acceptance Testing:

• Business Requirements have to be accessible.
• Application Code should be fully developed
• Unit Testing, Integration Testing & System Testing must be performed
• No Showstoppers, High, Medium defects in System Integration Test Phase -
• Just Cosmetic error is acceptable before UAT
• Regression Testing Ought to Be completed with no Significant flaws
• All of the reported defects should be fixed and tested before UAT
• Traceability matrix for all testing Ought to Be completed
• UAT Environment must be ready
• Subscribe off email or communication in System Testing Team that the system is ready for UAT execution

The way to do UAT Testing

UAT is done by the users of the machine or software. This type of Software Testing generally happens at the customer location which is referred to as Beta Testing. Once Entry criteria for UAT are satisfied, following are the jobs Will Need to be performed by the testers:

• UAT Process
• Analysis of Business Requirements
• Generation of UAT test plan
• Identify Test Scenarios
• Produce UAT Test Cases
• Planning of Test Data(Production like Data)
• Run the Evaluation cases
• Record the Results
• Confirm business goals
• UAT Tools

There Are Lots of tools in the marketplace used for User acceptance testing and some are listed for reference:

Fitness instrument: It's a java tool used as a testing engine. It's not hard to generate tests and record results in a table. Users of the tool enter the formatted input and tests are made automatically. The evaluations are then implemented and the output is returned back to the consumer.

Watir: It is a toolkit used to automate browser-based tests during User acceptance testing.

the Majority of the times in routine software developing scenarios, UAT is completed in the QA environment. When there is no staging or UAT environment

UAT is categorized into Alpha and Beta testing but it's not so important when the software is designed for a service-based industry

UAT makes sense once the client is connected to a greater degree

Conclusion:

In Software Engineering, the Complete type of UAT is User Acceptance Testing.

UAT is among the many flavors of testing which have emerged over the last twenty-five decades.

With UAT, the customer can be sure"What to expect" in the item instead of assuming.

The advantage of UAT is that there'll not be any surprises when the product is introduced into the marketplace.