SENOPT'08 is intended to address issues in the design of scalable, configurable, and high-performance applications built on service-oriented architectures and web services technologies. The workshop will portray interesting  development methodologies, design principles, engineering solutions, software architectures and frameworks used to create scalable  enterprise applications with reusable components and abstractions. Two specific aspects of interest of the workshop this year will be innovations that enable or demonstrate successful use of Software-As-A-Service and Web Service Composition.