A model-driven approach to describe and predict the performance of composite services

Using Aspects for Platform-Independent to Platform-Dependent Model Transformations

“…Other research on building performance models for web services takes a two-layered user/provider approach in (Marzolla and Mirandola, 2007): the user is a set of workflows and the provider a set of services deployed on a physical system; the queueing network formalism is used to derive performance bounds. In (D'Ambrogio and Bocciarelli, 2007), performance information about service capabilities and invocation mechanisms is given by the means of P-WSDL (Performance-enabled WSDL).…”

Low level Metrics to High level SLAs - LoM2HiS framework: Bridging the gap between monitored metrics and SLA parameters in cloud environments

“…We classify related work on enforcement of Cloud based services into (i) monitoring of Cloud/Grid/Web services [12,15,1], (ii) SLA management including QoS management [8][9][10][11] and (iii) mapping techniques of monitored metrics to SLA parameters and attributes [20,13,14]. Since there is very little work on monitoring, SLA management, and metrics mapping in Cloud systems we look particularly into related areas such as Grid and SOA based systems.…”

“…Thereby, SLAs can be exploited to define certain QoS parameters that a service has to maintain during its interaction with a specific customer. [14] introduce a model-driven approach for integrating performance prediction into service composition processes carried out using BPEL. In their approach, they composed service SLA parameters from resource metrics using some mapping techniques.…”

Transformational Design of Business Processes for SOA

“…Performance is measured as a mean response time under certain load level. The web service and connections between services can be modeled with queueing theory like M/M/1//inf system [8]. It means that requests arrive to the system independently with exponential interval distribution and response time is also exponentially distributed.…”