UML stands for Unified Modeling Language and is a powerful technology for creating visual models of software systems. It's a great tool for developers, as it allows them to easily create diagrams that can be used to communicate designs and ideas to other developers. UML is an open standard, meaning that it's available to anyone, and it's also widely accepted in the developer community. It's a great way to get your ideas across quickly and efficiently. UML is incredibly versatile, and it can be used for everything from simple diagrams to complex systems. It's also highly extensible, allowing developers to create custom extensions to meet their needs. With UML, developers can create robust models that are easily understandable and can be used to build powerful applications.