In software development, a framework is a pre-built foundation of reusable code, tools, and conventions that developers use to build applications more efficiently. Rather than writing everything from scratch, developers build on frameworks that handle common functions—database connections, user authentication, web page rendering—allowing focus on application-specific features. Popular frameworks include React and Angular for web interfaces, Django and Rails for web applications, and .NET for Microsoft platforms. Frameworks enforce structure and best practices, making code more consistent and maintainable. Choosing appropriate frameworks is an important technical decision affecting development speed, application performance, long-term maintenance, and available developer talent. Municipal IT projects typically use established frameworks to reduce development risk and ensure ongoing support. Framework updates and security patches require ongoing attention throughout application lifecycles.