In the context of 3D modeling, what does the term 'assembly' refer to?

The term 'assembly' in 3D modeling refers to a collection of parts that are brought together to create a complete model or system. In the context of programs like Solid Edge, an assembly allows users to see how individual components interact and fit together in a larger context. This is crucial for evaluating the design, ensuring that parts function correctly together, and assessing factors like clearances and interfaces.

In assemblies, parts can be positioned, constrained, and related to one another to reflect their physical relationships in the real world. This capability enables designers to simulate the operation of the assembled product, analyze motion, and conduct other forms of analysis that are essential for effective design.

The other options provided—such as a single part, a 2D sketch, or a design template—represent different aspects of the design and modeling process but do not encompass the concept of an assembly, which is fundamentally about integrating multiple parts into a cohesive whole.