QA - The easy way

Understand why software testing is important and how it helps detect issues, verify requirements, reduce risks, ensure quality, and improve the overall user experience.

Learn how the Software Development Life Cycle (SDLC) works and explore the six main stages of software development — from planning and analysis to testing and maintenance. This lesson will help you understand where QA fits into the development process and why each stage is important.

Learn the six stages of the Software Development Life Cycle (SDLC), from initial planning to post-release maintenance, and understand the role of QA testing throughout the development process.

Learn what functional testing is and how QA engineers verify that software works according to its requirements. Explore common approaches such as smoke, sanity, regression, black-box, white-box, alpha and beta testing through practical examples.

Learn how non-functional testing evaluates how well software works, focusing on areas such as performance, load, stress, security, and usability. Through practical examples, you’ll understand how these tests help ensure that software is fast, stable, secure, and easy to use.

Learn the difference between functional and non-functional testing, including common testing types such as smoke, sanity, regression, performance, security, usability, exploratory, and ad-hoc testing. This lesson explains what each type of testing is used for and provides practical examples from real-world applications.

Learn the key differences between Quality Assurance (QA) and Quality Control (QC), including their focus, approach, and role in the software development process. Through practical examples, you’ll understand how QA helps prevent defects while QC focuses on identifying them, and why a good QA professional needs to understand both.

Learn the key differences between Quality Assurance (QA) and Quality Control (QC), including their focus, approach, and role in delivering high-quality software.

Learn the difference between verification and validation and understand the two key questions behind them: “Are we building the product right?” and “Are we building the right product?” Through practical examples, you’ll see how both concepts help QA teams ensure that software meets requirements and user needs.

Learn the key differences between verification and validation, when they take place, what questions they answer, and how both contribute to software quality and user satisfaction.

Learn the seven fundamental principles of software testing and understand why they are important in real-world QA. Through practical examples, you’ll discover concepts such as early testing, defect clustering, exhaustive testing, the pesticide paradox, and context-dependent testing.

A concise study guide covering the seven fundamental principles of software testing, with simple explanations and practical examples to help you understand and remember each principle.

Learn the four main levels of software testing: Unit, Integration, System, and Acceptance Testing. Through practical examples, you’ll understand how testing progresses from individual components to the complete system and finally to user or client acceptance.

Learn the four main levels of software testing — Unit, Integration, System, and Acceptance Testing — and understand how testing progresses from individual components to the complete product.

Learn about the essential elements of a well-written test case, including the Test Case ID, Title, Description, Preconditions, Steps, Expected and Actual Results, and Status. This lesson explains the purpose of each element and how they work together to create clear, structured, and reusable test cases.

Follow a practical, step-by-step demonstration of how to write a complete test case from start to finish. You’ll see how to apply each test case element in a real example and create a clear, structured test case that can be easily followed by any tester.

Learn what test cases are, why they are important, and which key elements every well-written test case should contain. This lesson explains each element and its purpose, helping you create clear, structured, and reusable test cases.

Learn what software bugs are, how to identify them by comparing expected and actual results, and how acceptance criteria help determine whether something is a defect. You’ll also learn the difference between a bug and an improvement through practical examples.

Learn what a software bug is, how to recognize one, and how acceptance criteria help QA engineers identify incorrect behavior. This lesson also explains the important difference between a bug and an improvement, with practical examples to help you understand when an issue should be reported as a defect.

Follow the Bug Life Cycle from the moment a QA engineer reports a new issue until the bug is fixed and closed. This lesson explains each status with practical examples and shows what QA and developers are expected to do at every stage, including what happens when a bug is rejected, deferred, or reopened.

Learn what happens to a bug after it is reported and explore the different stages of the Bug Life Cycle. This lesson explains common statuses such as New, Rejected, Open, Deferred, Fixed, Retest, Reopened, and Closed, and shows how QA and development teams work together to track and resolve issues.

Learn about the essential elements of a professional bug report and understand why each one is important. This lesson covers Bug ID, Title, Description, Steps to Reproduce, Expected and Actual Results, Environment, Severity, and visual evidence, with practical examples to help you create clear and useful bug reports.

Follow a practical, step-by-step demonstration of how to create a complete bug report from start to finish. You’ll see how to describe the issue clearly, add reproduction steps, define expected and actual results, and provide the essential information developers need to investigate and fix the bug.