Beginner LevelSoftware Engineering Principles
What is Pair Programming and the Driver/Navigator workflow?
❓ Interview Prompt: Explain Pair Programming collaborative technique, Driver vs Navigator roles, code quality benefits, and knowledge sharing.
Pair Programming is an Agile software development technique where two programmers work together at a single workstation:
Roles:
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Driver: Writes code, focusing on syntax, immediate line implementation, and tactical mechanics.
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Navigator: Observes the Driver writing code, reviewing for architectural bugs, edge cases, and strategic direction.
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Benefits: Dramatically reduces defect rates, speeds up knowledge transfer, and eliminates code review bottlenecks.
Code Implementation Example
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### Pair Programming Session Plan
- **Feature**: Implement OAuth Refresh Token Rotation
- **Driver**: Alice (Writing implementation code)
- **Navigator**: Bob (Evaluating security edge cases & unit test scenarios)
- **Role Rotation**: Swap roles every 30 minutes!💡Structuring pair programming roles and rotation cadence.
🎯 Interview Key Takeaway
Use Pair Programming to improve code quality, share domain knowledge, and catch edge-case bugs early.
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