Assertion: set's boundary | /r/DefinedAs | the system observer
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: All systems have (a) inputs, outputs and feedback mechanisms, (b) maintain an internal steady-state (called homeostasis) despite a changing external environment, (c) display properties that are different than the whole (called emergent properties) but are not possessed by any of the individual elements, and (d) have boundaries that are usually defined by the system observer.