What term describes how various parts of an assembly connect together?

The term that accurately describes how various parts of an assembly connect together is "Connection." In the context of assemblies, connections refer to the methods or points at which different components join or interface with each other, resulting in a cohesive working model. Connections can involve various forms, such as bolt holes, dovetails, or pins, to ensure that parts work in unison and maintain the intended assembly functionality.

The assembly structure pertains to the overall organization and hierarchy of the components within an assembly but does not specifically address the details of how those components connect. Similarly, "Explosion" typically refers to an exploded view of an assembly for illustrative purposes, showing how parts fit together without conveying the specifics of their connection. "Assembly design," while related to the overall process of creating an assembly, focuses on broader design aspects rather than the critical specifics of component connections. Thus, "Connection" is the most precise term in this context.