CLOS (Common Lisp Object System)

The Common Lisp Object System (CLOS) is an advanced object-oriented programming system within the Common Lisp programming language. It allows developers to create and manage complex data structures, called objects, that can encapsulate both data and behavior. CLOS features multiple inheritance, enabling objects to inherit characteristics from several parent classes, and supports dynamic method resolution, which means methods can be selected at runtime based on the types of the arguments provided. This flexibility makes CLOS powerful for building reusable and adaptable software, allowing for sophisticated modeling of real-world concepts.