Testing Quadrants are a classification model that organises different types of tests based on two dimensions: supporting versus critiquing the product and technology-facing versus business-facing.
The Four Quadrants:
1. Quadrant 1 (Technology-Facing): Unit tests focused on supporting development.
2. Quadrant 2 (Business-Facing): Functional tests aimed at validating business requirements.
3. Quadrant 3 (Technology-Facing): Non-functional tests assessing performance or security.
4. Quadrant 4 (Business-Facing): Exploratory tests critiquing user experience or usability.
This model helps teams understand their testing strategy’s scope and balance across different areas effectively.