What does UML stand for?

UML stands for Unified Modeling Language, which is a standardized modeling language used in software engineering to visualize, specify, construct, and document the artifacts of a software system. It provides a way to represent complex software designs through diagrams, making it easier for stakeholders—such as developers, architects, and business analysts—to understand and communicate the various components of a system.

The term "Unified" reflects the aim of the language to unify various modeling methodologies and practices that existed prior to its development. This helps in achieving consistency and clarity in software design processes across teams and projects. The "Modeling" aspect indicates its primary purpose: to create abstract representations of software systems.

In addition, UML supports multiple views of a system, such as structural and behavioral perspectives, which are crucial for comprehensive software design. Its standardized set of diagrams, including use case diagrams, class diagrams, and sequence diagrams, play an essential role in the software development lifecycle by permitting clear communication, documentation, and analysis of program architecture and design patterns.