Quick Definition:
Pair Programming is an Agile software development technique in which two programmers work together at one workstation. One, the driver, writes code while the other, the observer or navigator, reviews each line of code as it is typed in.
Benefits for the Project
- Higher Code Quality: Two sets of eyes are better than one for catching errors and improving design.
- Knowledge Sharing: Team members learn from each other, reducing the risk of “knowledge silos.”
- Faster Problem Solving: Two people can often solve complex problems faster than one.
- Improved Team Morale: Pair programming can build trust and collaboration within the team.
The Cost
Pair programming is often perceived as twice as expensive, but studies show it only increases total effort by about 15-20%, while significantly reducing defects and long-term maintenance costs.
