node
A node is a run-time physical object that represents a computational resource, which generally has at least a memory and often processing capability. Run-time artifacts may be deployed on nodes.
The word node is also used (confusingly) to denote a composite control structure within an activity. See activity node.
See also artifact, deployment, location.
Semantics
Nodes include computing devices but also (in a business model, at least) human resources or mechanical processing resources. Nodes may be represented as types and as instances. A node defines a location at which an artifact may reside.
Physical nodes have many additional properties, such as capacity, throughput, and reliability. UML does not predefine these properties, as there ...
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