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What are the best ways to pair program on complex or unfamiliar code?

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Pair programming is a collaborative technique where two developers work on the same codebase, one as the driver and the other as the navigator. It can help improve code quality, knowledge sharing, and problem-solving skills. But what if you have to pair program on complex or unfamiliar code? How can you make the most of this opportunity and avoid frustration and confusion? Here are some best practices to follow when pair programming on challenging code.

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Arnav Andrew J.

DevOps at Meesho
Albie Mark Salvador

Solutions Architect | Security Architect | IT Strategist

1 Choose a suitable pair

The first step is to find a partner who is compatible with your skill level, learning style, and personality. You don't want to pair with someone who is too advanced or too novice, as that can create a gap in understanding and communication. You also don't want to pair with someone who is too dominant or too passive, as that can affect the balance of input and feedback. Look for someone who is willing to share their knowledge, listen to your ideas, and respect your opinions.

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Arnav Andrew J.

DevOps at Meesho
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You two should have a good rapport and especially patience with one another. Any unknown codebase might have absolutely nonsensical things going on that might confound and anger in equal measure. You should feel free to bounce ideas off one another and speak any initial impressions without fear of not being taken seriously. Only then you can reap the benefits of pairing.

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Jareer Zeenam

Software Engineer | Full Stack Engineer | Web Developer | PHP | Laravel | GraphQL | Node.js | Next.js | Microservices | Vue | React | MSc Data Science & AI
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Selecting a suitable pair for programming in complex or unfamiliar code is important for effective collaboration, considering factors such as diverse skill sets, experience, communication styles, comfort with ambiguity, learning orientation, patience, adaptability, shared goals, availability, and positive chemistry to enhance the problem-solving process.

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Viraj Wickramasinghe

Senior Software Engineer | Expert in Agile & Scrum Methodologies | Java Developer
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Having a partner with the same skill and knowledge level is important for: - Seamless communication - Providing constructive feedback - Resolving errors and issues - Agreement on ways of working

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2 Define the goals and roles

The second step is to clarify the goals and roles of the pair programming session. What are you trying to achieve with the code? What are the main challenges and risks? How will you measure your progress and success? These questions can help you set realistic and specific expectations and avoid scope creep and distractions. You should also agree on who will be the driver and who will be the navigator, and how often you will switch roles. The driver is responsible for writing the code, while the navigator is responsible for guiding the logic, reviewing the syntax, and spotting errors.

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Arnav Andrew J.

DevOps at Meesho
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Setting goals is a great way to measure your success, especially if you can have something to show for your work at the end of the day. This will keep the pair motivated. Only one person being on the keyboard at a time is a good idea, otherwise your actions might cause conflicts and deter from the goal. Do switch once in a while though!

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3 Communicate effectively

The third step is to communicate effectively with your partner throughout the pair programming session. Communication is the key to collaboration and learning, especially when working on complex or unfamiliar code. You should explain your thoughts and actions, ask and answer questions, and give and receive feedback. You should also use a common vocabulary and avoid jargon and acronyms. If you encounter a term or concept that you don't understand, don't hesitate to ask for clarification or do some research.

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Arnav Andrew J.

DevOps at Meesho
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Do not make many assumptions about what your partner is thinking or doing when you're uncertain. Your foremost goal should be smooth collaboration, leave your ego at the door and don't try to appear more knowledgeable than you are (and even if you are, start from what is common between you rather than the differences)

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Viraj Wickramasinghe

Senior Software Engineer | Expert in Agile & Scrum Methodologies | Java Developer
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Clear communication is essential for successful pair programming. When team members understand each other well, conflict resolution becomes easier, leading to improved development practices. Constructive feedback plays a key role in personal growth and contributes to enhancing the quality of the product.

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4 Break down the problem

The fourth step is to break down the problem into smaller and simpler chunks. Complex or unfamiliar code can be overwhelming and intimidating, so it helps to divide it into manageable parts. You can use techniques like pseudocode, flowcharts, diagrams, or comments to outline the structure and logic of the code. You can also use tools like debuggers, consoles, or tests to inspect and verify the code. By breaking down the problem, you can reduce the cognitive load and focus on one aspect at a time.

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Viraj Wickramasinghe

Senior Software Engineer | Expert in Agile & Scrum Methodologies | Java Developer
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Breaking down a complex problem into manageable portions helps in: - Facilitating easier issue resolution and fixes - Simplifying the testing process - Enhancing understanding of the problem - Making the overall task more manageable

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5 Learn from each other

The fifth step is to learn from each other as much as possible. Pair programming on complex or unfamiliar code is a great opportunity to expand your knowledge and skills, as well as to discover new perspectives and approaches. You should be open-minded and curious about your partner's ideas and suggestions, and try to understand the reasoning behind them. You should also be humble and willing to admit your mistakes and gaps, and seek feedback and improvement. By learning from each other, you can enhance your code quality and your professional growth.

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6 Celebrate your achievements

The sixth and final step is to celebrate your achievements and reflect on your experience. Pair programming on complex or unfamiliar code can be challenging and stressful, but also rewarding and satisfying. You should acknowledge and appreciate the efforts and contributions of your partner, and celebrate the outcomes and results of your collaboration. You should also review and evaluate the process and the product, and identify what worked well and what can be improved. By celebrating your achievements, you can boost your confidence and motivation, and foster a positive and supportive relationship with your partner.

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Viraj Wickramasinghe

Senior Software Engineer | Expert in Agile & Scrum Methodologies | Java Developer
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Celebrating and appreciating each other for accomplishments not only makes work more enjoyable but also boosts motivation to achieve even better results in the future. It creates a positive atmosphere and encourages continuous improvement.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Albie Mark Salvador

Solutions Architect | Security Architect | IT Strategist
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Some ways to get started: - do a tech scan. - find industry standards that works - create a working framework and establish working principles.

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What are the best ways to pair program on complex or unfamiliar code?

1

2

3

4

5

6

7

1 Choose a suitable pair

2 Define the goals and roles

3 Communicate effectively

4 Break down the problem

5 Learn from each other

6 Celebrate your achievements

7 Here’s what else to consider

Programming

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What are the best ways to pair program on complex or unfamiliar code?

1

2

3

4

5

6

7

1 Choose a suitable pair

2 Define the goals and roles

3 Communicate effectively

4 Break down the problem

5 Learn from each other

6 Celebrate your achievements

7 Here’s what else to consider

Programming

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