& UML; es composa de molts elements de model que representen les diferents parts d' un sistema de programari. Els elements & UML; s' usen per crear diagrames, que representen una certa part, o un punt de vista del sistema. & umbrello; implementa els següents tipus de diagrames:
& UML; is composed of many model elements that represent the different parts of a software system. The & UML; elements are used to create diagrams, which represent a certain part, or a point of view of the system. The following types of diagrams are supported by & umbrello;: