What did you use to form pairs for pair testing? How are pairs formed?.

To form pairs for pair testing, methodologies based on analysis of functional areas, risks, and priorities are often used. The main principles of pairing:

• Diversity of skills: pairs are formed from specialists with different competencies to ensure broader test coverage.
• Risks and criticality: pairs are selected to cover the most risky and critical parts of the product.
• Mutual learning: pairs may consist of an experienced and a less experienced tester to transfer knowledge.
• Rotation: pairs are periodically changed to avoid stagnation and improve quality.

In practice, coverage matrices or functional area correspondence tables are often used to ensure all important scenarios are tested by different pairs. Random or targeted pairing is also applied, considering the specifics of the project.