UI vs API vs Integration Testing Explained | QA Bootcamp Lesson 5

Published: 15 May 2026
on channel: Melissa Codes
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Welcome to Lesson 5 of the QA Bootcamp series!

In this beginner-friendly QA tutorial, you’ll learn the differences between UI Testing, API Testing, and Integration Testing — three essential concepts used by QA engineers and software testers in real-world projects.

In this lesson you’ll learn:
What UI Testing is
What API Testing is
What Integration Testing is
Differences between UI and API testing
Why API testing is important
Real-world QA examples
Advantages and disadvantages of each testing type

This lesson is perfect for:
Beginner QA testers
Manual testing learners
Future automation testers
IT beginners
Students preparing for QA interviews

Topics covered in the QA Bootcamp series:
SDLC & STLC
Jira Testing
Test Cases
Bug Reporting
Regression Testing
Smoke & Sanity Testing
API Testing
Agile & Scrum
Automation Testing Basics

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