Research Article

Mutation-Based Harmony Search Algorithm for Hybrid Testing of Web Service Composition

Table 5

Typical QoS attributes of component services.

QoS attributeDefinitionNotation

Response time (T)The elapse time between a request and a response
Execution cost (C)The cost associated with the invocation of a serviceMonetary value of the service
Availability (A)The probability that a service is accessible and ready for immediate use
Reputation (R)The measurement of a service’s trustworthinessCalculated based on the experiences of the users