Melvin Conway proposed Conway's Law in 1967, which states that a system's structure will mirror the structure of the organization that created it. Two case studies provide empirical evidence for Conway's Law. [1] A study of a software project found tasks were completed faster when the communication structure matched the system's artifact structure, validating Conway's Law improves productivity. [2] A study of Windows Vista found binaries with more organizational complexity, such as many engineers or ex-engineers working on it, were more failure-prone, validating Conway's Law improves quality. The studies provide empirical validation for Conway's Law and show how better aligning an organization's communication structure with a system's design can improve both productivity and quality.