ISTQB Foundation 2026 | 2.2. Test Levels and Test Types | Click&Break

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In this lesson, we cover Chapter 2.2 – Test Levels and Test Types, an essential topic for understanding how testing is structured and applied throughout the software development lifecycle.

You’ll learn how testing is organized at different stages of development and how various types of testing help verify both functional and non-functional aspects of software.

📌 In this video, we cover:
✔ 2.2.1 Test Levels

Understand the different levels where testing takes place:

Unit Testing – validating individual components

Integration Testing – verifying interactions between components

System Testing – testing the complete system as a whole

Acceptance Testing – validating the system from the user or business perspective

✔ 2.2.2 Test Types

Discover the different test types used to evaluate software quality, including:

Functional testing

Non-functional testing (performance, usability, security, etc.)

Structural testing

Change-related testing

✔ 2.2.3 Confirmation Testing and Regression Testing

Learn the difference between:

Confirmation Testing – verifying that a specific defect has been fixed

Regression Testing – ensuring that recent changes have not broken existing functionality

Understanding these concepts is crucial for both ISTQB exam preparation and real-world testing projects.

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