what is uml diagram

August 03, 2026

General

In our third installment on UML we'll show you how to use sequence diagrams as a tool in your application development and an understanding of object interaction. The purpose of a class diagram is to ... UML 2.x added the ability to decompose software system into components and sub-components. Tools for creating UML Diagrams There are several tools available for creating Unified Modeling Language (UML) diagrams, which are commonly used in software development to visually represent system architecture, design, and implementation. UML notation is one of the most popular technical diagramming standards defining a wide range of diagrams useful in many different industries and professions, not just software engineering. That many different technical diagrams can be daunting, so here is an overview of each of the different types of UML diagrams, who draws or reads them, and why they are useful. Create simply and freely UML diagrams from your browser thanks to PlantUML Web Server. Just enter a text diagram, and get the result in PNG or SVG format. What is a UML diagram? Learn about types of UML diagrams and UML symbols. Learn how to make one. See examples. For related background details, please refer to our report on ej25 subaru cooling system diagram. UML Diagram - Everything You Need to Know About UML Diagrams - SmartDraw The Unified Modeling Language (UML) is a general-purpose, object-oriented, visual modeling language that provides a way to visualize the architecture and design of a system, similar to the function of a blueprint. [1][2] UML defines notation for 14 types of diagrams which focus on aspects such as behavior, interaction, and structure. draw.io is free online diagram software. You can use it as a flowchart maker, network diagram software, to create UML online, as an ER diagram tool, to design database schema, to build BPMN online, as a circuit diagram maker, and more. draw.io can import .vsdx, Gliffy™ and Lucidchart™ files .