Types: The Foundation of Software Design

Software design is more than just writing functions; it's about high-level architecture. This article argues that types are the most crucial element. Types define data structures and function interfaces, key to understanding and communicating software design. Even in dynamically typed languages, types exist implicitly. Good type design improves code readability, maintainability, and reliability, aiding abstraction and modularity. The article explores differences between static and dynamic typing and how various type systems (like generics and dependent types) impact design.