Table 1: The basic attributes of cloud computing platform reliability.

Reliability1st level2nd level3rd level4th level

Reliability of cloud computing platform Network reliability , Network equipment reliability (), ()MTTF of central units (), ()
MTTF of common units (), ()
Network system reliability (), ()Frequency of network attack (), ()Dos attack (), ()
Probe attack (), ()
U2R attack (), ()
R2L attack (), ()
Vulnerability of network system (), ()

Reliability of cloud computing platform Hardware reliability , Cloud infrastructure reliability (), ()MTTF of cloud server (), ()
MTTF of virtual machine (), ()
Scalability of cloud system (), ()
Cloud platform reliability (), ()MTTF of cloud platform I/O (), ()
Fault tolerant rate of cloud platform (), ()

Reliability of cloud computing platform Software reliability (), ()Application reliability (), ()Failure rate of web application (), ()
Controllability of access terminal (), ()
Cloud operating system reliability (), ()MTTF of cloud operating system (), ()
Vulnerability of cloud operating system (), ()

Reliability of cloud computing platform Service reliability (), ()Performance reliability (), ()Capacity of throughput (), ()
Average response time of the service (), ()
Failure rate of service (), ()
MTTR of service (), ()
Service availability (), ()Completeness of service (), ()
Access success rate (), ()
Ability of personalized service (), ()
Service stability (), ()Service continuity and stability (), ()
Disaster recovery capability (), ()
Service transparency (), ()