Code Revies at Google. Every Code Change is Reviewed - 75% of the code reviews are approved by only one reviewer. Company-wide Approval Criteria - Approver needs ownership rights and readability certificate. 4 Hours to Review Completion - Small reviews are completed within one hour. Large reviews within five hours. Small and Frequent Reviews - 90% of all code changes comprise less than 10 files and 24 lines of code.
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