QoS-Aware service composition for complex workflows

Start Page
333
End Page
338
Article Number
5476720
Citation
5th International Conference on Internet and Web Applications and Services (ICIW 2010)
Contribution to Conference
5th International Conference on Internet and Web Applications and Services, ICIW 2010  
Publisher DOI
10.1109/ICIW.2010.55
Scopus ID
2-s2.0-77954484575
In Service-oriented Architectures, business processes are realized by composing loosely coupled services. With the ongoing success of Web services technologies, the invocation of Web services goes beyond enterprises' borders. So, besides implementing required services within one enterprise, services can be purchased from external service providers. With a growing number and variety of services, enterprises can choose between functionally equivalent services at different cost and quality levels. The paper at hand addresses this service selection problem considering complex workflow patterns. Aggregation functions for different quality of service parameters are proposed and a linear optimization problem is formulated, which can be solved using integer linear programming techniques or by applying heuristic solutions.
Subjects
Complex workflows
Optimization
Quality of service
Service selection