Reliability Evaluation of Service-Oriented Architecture Systems Considering Fault-Tolerance Designs

Table 1

Service configuration.

Abstract srv.	Scenario no. 1		Scenario no. 2
	Physical srv.	Srv rel.	Physical srv.	Srv rel.
1. RA init.	Int srv (1)	0.99	Int srv (1)	0.99
2. Veh. listing	Int DB srv (2)	0.97	Int DB srv (2)	0.97
3. Higher-grp.-veh. Asgmnt.	Int DB srv (3)	0.97	Int DB srv (3)	0.97
4. Insurance order	Ext srv (4)	0.91	Ext srv (4)	0.91
5. Payment	Ext srv (6)	0.91	Int exec (5)	0.99
			Ext alt I (6)	0.91
			Ext alt II (7)	0.88
			Ext alt III (8)	0.85
			Int AT (9)	0.99
6. RA activation	Int DB srv (10)	0.97	Int DB srv (10)	0.97