David L. Parnas (computer scientist)

David L. Parnas was a renowned computer scientist known for foundational contributions to software engineering. He emphasized the importance of designing software in modular components, each with a clear purpose, to improve reliability and maintainability. His ideas promoted writing code that is easy to understand and modify, which helps prevent errors and reduces long-term costs. Parnas's work has shaped best practices in software development, encouraging developers to think carefully about how to structure programs for clarity and robustness. His contributions remain influential in how complex software systems are designed and maintained today.