Introduction: Fourth International Workshop on Engineering Service-Oriented Applications (WESOA 2008).
ABSTRACT In large-scale software projects that increasingly adopt service-oriented software architecture and technologies, availability
of sound systems engineering principles, methodology and tools for service-oriented applications is mission-critical for project
success. However, engineering service-oriented applications poses specific requirements that differ from traditional software
engineering and the discipline of software service engineering (SSE) is not yet established. Consequently, there is an urgent
need for research community and industry practitioners to develop comprehensive engineering principles, methodologies and
tool support for the entire software development lifecycle of service-oriented applications.