A Belief Rule-Based Safety Evaluation Approach for Complex Systems

Table 1

Referential value of attributes for a launch mission evaluation.

Attribute	Referential value	Attribute	Referential value
Evaluation of a launch	High/medium/low	Payload weight	1.6, 4.0 (t)
U1	High/medium/low	Orbit	MEO, GEO
U2	High/medium/low	Design reliability	(0.9, 0.99)
U3	High/medium/low	Experimental proof	Highly/moderately/poorly
Propulsion capability	High/medium/low	Number of TS	1, 2, 3
Upper stage maturity	High/medium/low	GCS service time	50, 80 (min)
U4	High/medium/low	RTM percentage	50%, 70%
Communication capability	High/medium/low	Wave band	Shortwave, longwave
U5	High/medium/low	Humidity	30%, 50%
Interval	3, 4 (month)	Temperature	16, 36 (°C)
Type	Liquid, hybrid