Assessing the Impact of Virtual Standby Systems in Failure Propagation for Complex Wastewater Treatment Processes

Table 1

Comparison between methodologies for temporal operational continuity modelling.

Model	Evaluation aspects
	Temporal continuity	Failure rate	Flexibility	Number of variables required	Modelling size	Construction and analysis effort
RBD [6, 7]	No	Variable	Medium	Medium	Medium	Low
Markov [3]	Yes	Constant	Medium	Medium	Medium	High
Buffer [13]	Yes	Variable	High	High	Big	High
VSB	Yes	Variable	High	Medium	Medium	Medium