I. Opening Keynote Ontoprise: Semantic Web Technologies at Business.- II. Service Management.- BPEL-Mora: Lightweight Embeddable Extensible BPEL Engine.- A Cross-Layer Approach to Performance Monitoring of Web Services.- Employing Intelligent Agents to Automate SLA Creation.- A Flexible Approach to Service Management-Related Service Description in SOAs.- III. Model Driven Engineering for Web Service Composition and Discovery.- Model Centric Approach of Web Services Composition.- Model Driven Design of Web Service Operations using Web Engineering Practices.- A Logic-based Approach for Service Discovery with Composition Support.- IV. Mobile Services.- Mobile and Dynamic Web Services.- Software Metrics for the Efficient Execution of Mobile Services.- V. Web Service Technology Challenges.- Dynamically Adapting Clients to Web Services Changing.- Web Service Standards: Do we need them?.

This book contains a collection of selected and revised papers originally presented at the Workshop on Emerging Web Service Technology (WEWST) held in conjunction with the 4th European Conference on Web Services (ECOWS'06) in Zurich, Switzerland, December 2006. It details the latest innovations, developments and results in Web Services research. In addition, the book records the evolution of important ideas emerging in the Web Services field.