An actor in the Unified Modeling Language (UML) "specifies a role played by a user or any other system that interacts with the subject."
A component in the Unified Modeling Language represents a modular part of a system that encapsulates the state and behavior of a number of classifiers. Its behavior is defined in terms of provided and required interfaces, is self-contained, and substitutable. A number of UML standard stereotypes exist that apply to components.
In Unified Modeling Language (UML), a component diagram depicts how components are wired together to form larger components or software systems. They are used to illustrate the structure of arbitrarily complex systems.
A deployment diagram in the Unified Modeling Language models the physical deployment of artifacts on nodes. To describe a web site, for example, a deployment diagram would show what hardware components ("nodes") exist, what software components ("artifacts") run on each node, and how the different pieces are connected.
A node in the Unified Modeling Language (UML) is a computational resource upon which UML artifacts may be deployed for execution.

The object-modeling technique (OMT) is an object modeling approach for software modeling and designing. It was developed around 1991 by Rumbaugh, Blaha, Premerlani, Eddy and Lorensen as a method to develop object-oriented systems and to support object-oriented programming. OMT describes object model or static structure of the system.
Objecteering is a UML and MDA CASE tool edited by Objecteering Software, a subsidiary of Softeam.
A package in the Unified Modeling Language is used "to group elements, and to provide a namespace for the grouped elements". A package may contain other packages, thus providing for a hierarchical organization of packages.

Software Ideas Modeler is a CASE and an UML tool. The modeler supports all 14 diagram types specified in UML 2.5. It also supports among others the following diagrams and standards:ER diagrams BPMN 2.0 CMMN SysML 1.5 ArchiMate 3 JSD CRC flowcharts data flow diagram Infographics Wireframes Mind maps User Stories Roadmaps

StarUML is a UML tool by MKLab. The software was licensed under a modified version of GNU GPL until 2014, when a rewritten version 2.0.0 was released for beta testing under a proprietary license.

In computing, UML eXchange Format (UXF) is a XML-based model interchange format for Unified Modeling Language (UML), which is a standard software modeling language. UXF is a structured format described in 1998 and intended to encode, publish, access and exchange UML models.