In UML (Unified Modeling Language), a **Node** is a fundamental building block used in the context of modeling physical or virtual resources that represent a computational resource in a system. Nodes can be thought of as the hardware or software resources needed to execute or host system components. ### Key Characteristics of Node in UML: 1. **Representation**: A node is represented as a three-dimensional box in UML diagrams. This visual representation helps to distinguish nodes from other elements in the model.
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