Margaret Hamilton Coined “Software Engineering” Because Code Deserves the Same Rigor as Bridges

Margaret Hamilton’s Apollo-era work, including software that prioritized critical tasks and helped avert an aborted lunar landing amid computer overload alarms, is presented as a lasting model for treating software development as an engineering discipline. Working within the severe memory and reliability constraints of the Apollo guidance computer, Hamilton emphasized exhaustive testing, failure recovery, priority scheduling, documentation, and traceable change management, helping establish the term “software engineering” and challenge perceptions of programming as secondary work. The piece connects these practices to modern development and DevOps workflows, arguing that pull-request reviews, branch protections, clear commit messages, testing, auditability, and visual version-control tools are quality safeguards rather than bureaucracy. It concludes that disciplined, maintainable, and transparent processes enable teams to move confidently and reduce the risk that deployments depend on luck.

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