Iterative Service Orchestration based on Dependability Attributes

In a service-oriented architecture (SOA), the orchestra-tion of services to new services and complex workflows is a common approach. Because the complexity and capabil-ity of the orchestrated services are increased, it is impor-tant to maintain and ensure the dependability attributes, e.g. availability and reliability, in such an environment. Today, most approaches focus on the needs during the creation of a single application, but the Internet became a commodity for end users during the last years and more services are available every day. While the range of available services is growing, the end users are helpless selecting a service providing the quality of service they expect. Therefore, a straightforward approach is needed allowing the creation and modification of orchestrated services by end users with respect to dependability attributes.