Software Testing - Software Testing Methodology

Software Testing Methodology refers to the structured approach or strategy used to plan, design, and execute tests to ensure software quality.
It defines how testing will be done, what types of testing will be applied, and when they will be performed in the development lifecycle.

Main Software Testing Methodologies

They are usually grouped into two categories:

1. Manual Testing Methodologies

• Black Box Testing

  • Focuses on checking functionality without knowing internal code.

  • Example: Functional testing, regression testing.

• White Box Testing

  • Involves testing the internal logic, code structure, and paths.

  • Example: Unit testing, code coverage analysis.

• Gray Box Testing

  • Combines black box and white box approaches.

  • Example: Integration testing with partial code knowledge.

2. Testing Methodologies Based on Development Models

• Waterfall Model Testing

  • Testing happens after the development phase is completed.

• V-Model (Verification & Validation)

  • Testing is planned alongside each development stage.

• Agile Testing

  • Continuous testing in short iterations (sprints).

• Spiral Model Testing

  • Risk-based testing done in repeated cycles.

3. Automated Testing Methodologies

• Uses tools to run test cases automatically.

• Example: Selenium, JUnit, TestNG.

• Suitable for regression, performance, and load testing.

Purpose of a Testing Methodology

• Ensure systematic defect detection.

• Maintain consistency across projects.

• Improve efficiency by using proven testing strategies.

• Align testing with project goals and risks.