Why is code review considered essential in quality assurance?

Code review is considered essential in quality assurance primarily because it helps identify bugs and improve code quality. This process involves having multiple developers examine each other’s code, which increases the likelihood of uncovering errors or potential issues that a single programmer might overlook.

This collaborative scrutiny not only identifies bugs early in the development process, thus reducing the cost and time associated with fixing them later, but also promotes the adoption of best practices and coding standards among team members. As a result, overall code quality improves, leading to a more stable and reliable final product.

Additionally, code reviews foster knowledge sharing and collective code ownership within the team, making it easier to maintain and scale the codebase over time. This aligns with the principles of quality assurance, ensuring that the software meets the required standards before reaching the final stages of development or deployment.