CloudConsumerism: A Consumer-Centric Ranking Model for Efficient Service Mapping in Cloud

Table 1

Offered QoS of the CSPs.

QoS attributes	Top-level QoS attributes required by the consumers										First level attributes (weights)	Second level attributes (weights)		Service 1 (S1)	Service 2 (S2)	Service 3 (S3)	Value type
	1	2	3	4	5	6	7	8	9	10
Accountability	0.05	0.25	0.10	0.25	0.05	0.05	0.05	0.05	0.30	0.05	Level 0-10			4	8	4	Numeric
Agility	0.10	0.20	0.20	0.10	0.15	0.10	0.10	0.10	0.10	0.30	Capacity (0.6)	CPU	0.5	9.6	12.8	8.8	Numeric
												Memory	0.3	15	14	15	Numeric
												Disk	0.2	1690	2040	630	Numeric
Assurance	0.30	0.10	0.15	0.20	0.20	0.20	0.45	0.20	0.20	0.20	Elasticity (0.4)	Time	1	80-120	520-780	20-200	Range
											Availability (0.7)	0.7	0.7	99.95%	99.99%	100%	Numeric
											Service stability (0.2)	Upload time	0.3	13.6	15	21	Numeric
												CPU	0.4	17.9	16	23	Numeric
												Memory	0.3	7	12	5	Numeric
											Serviceability; (0.1)	Free support	0.7	0	1	1	Boolean
												Type of support	0.3	24/7, diagnostic tools, phone, urgent response	24/7, diagnostic tools, phone, urgent response	24/7, phone, urgent response	Unordered set
Cost	0.30	0.05	0.30	0.10	0.25	0.50	0.05	0.10	0.05	0.10	Ongoing cost (1)	VM cost	0.6	$0.68	$0.96	$0.96	Numeric
												Data	Inbound	10	10	8	Numeric
													Outbound	11	15	18
												Storage	0.2	12	15	15	Numeric
Performance	0.30	0.30	0.10	0.30	0.30	0.10	0.30	0.30	0.30	0.30	Service response time (0.1)	Range	0.5	80-120	520-780	20-200	Range
												Average value	0.5	100	600	30	Numeric
Security	0.05	0.10	0.15	0.05	0.05	0.05	0.05	0.25	0.05	0.05	Level: 0-10 (1)			4	8	4	Numeric