Stop doing code reviews and try these alternatives

Code reviews, particularly those based on pull requests, are a common practice in software development aimed at preventing defects and fostering knowledge sharing. However, they often lead to inefficiencies, such as delayed code, context switching, and negative social dynamics within teams. Many companies, including Google and Microsoft, have noted that code reviews can consume a significant portion of development time, which contributes to the economic cost of delays. Moreover, code reviews may not effectively identify defects since they usually involve reading rather than running the code. In contrast, alternatives like pair programming and mob programming offer more effective knowledge sharing and defect prevention. Pair programming involves two developers working synchronously on a problem, thereby eliminating delays and context switching, while fostering a collaborative environment that enhances learning and code quality. Mob programming extends this concept to the entire team, further improving knowledge sharing and social dynamics, although it may involve higher salary costs. Both practices offer tangible benefits over traditional code reviews, suggesting that teams should evaluate the costs and values of their processes to find the most suitable approach.

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