In terms of system elements, what does 'atomic' mean?

The term 'atomic' in the context of system elements refers to components or elements that are indivisible, meaning they cannot be broken down into simpler parts without losing their essential characteristics or functions. In systems engineering, an atomic element represents the most basic unit within the system hierarchy, serving as a foundational building block. These elements are typically well-defined and serve specific roles within the overall system architecture.

Choosing this understanding, it aligns with the notion that atomic elements do not have further decomposition. In contrast, complex and interconnected systems would involve elements that are not atomic since they can be decomposed into more detailed sub-components. Likewise, broad and undefined elements do not meet the criteria of being atomic, as they lack specificity and functional clarity. Elements performing multiple functions are also not considered atomic, as they suggest a level of complexity and integration beyond a simple, singular function. Thus, the definition of atomic elements as having no further decomposition is central to understanding their role in systems engineering.