E-Commerce Services -- An Approach to Detecting Shill-Biddable Allocations in Combinatorial Auctions -- Explanation Services and Request Refinement in User Friendly Semantic-Enabled B2C E-Marketplaces -- Customer Future Profitability Assessment: A Data-Driven Segmentation Function Approach -- Optimization of Automatic Navigation to Hidden Web Pages by Ranking-Based Browser Preloading -- Business Processes and Services -- Transforming Collaborative Business Process Models into Web Services Choreography Specifications -- Evaluation of IT Portfolio Options by Linking to Business Services -- Process Driven Data Access Component Generation -- Using Naming Tendencies to Syntactically Link Web Service Messages -- Data and Knowledge Engineering -- Maintaining Web Navigation Flows for Wrappers -- Mobile P2P Automatic Content Sharing by Ontology-Based and Contextualized Integrative Negotiation -- Integrating XML Sources into a Data Warehouse -- Remote-Specific XML Query Mobile Agents -- Business Models and Analysis -- A Process History Capture System for Analysis of Data Dependencies in Concurrent Process Execution -- Business Impact Analysis Using Time Correlations -- A Bottom-Up Workflow Mining Approach for Workflow Applications Analysis -- BestChoice: A Decision Support System for Supplier Selection in e-Marketplaces -- Web Services -- Semantic Web Services Enabled B2B Integration -- A Novel Genetic Algorithm for QoS-Aware Web Services Selection -- Analysis of Web Services Composition and Substitution Via CCS -- E-Commerce Systems -- Modified Naïve Bayes Classifier for E-Catalog Classification -- A Sentinel Based Exception Diagnosis in Market Based Multi-Agent Systems -- Dynamical E-Commerce System for Shopping Mall Site Through Mobile Devices -- PROMOD: A Modeling Tool for Product Ontology.

Welcome to the second International Workshop on Data Engineering Issues in E-Commerce and Services (DEECS 2006) in conjunction with the 8th IEEE Conference on E-Commerce Technology and the third IEEE Conference on Enterprise Computing, E-Commerce and E-Services. The purpose of the DEECS workshop is to provide an annual forum for exchange of state-of-the-art research and development in e-commerce and services. Since the increasing demand on e-commerce and services, we are witnessing a continuing growth of interest in the workshop. The increased number of submissions this year includes a record number from Asia. We received 47 papers: 6 from North/South America, 9 from Europe, and 32 from Asia. Of these, 15 regular papers and 8 short papers were accepted. The technical program reflects an increasing development of principles in service engineering, service-oriented architecture, data and knowledge engineering, and business models and analysis. It also reflects an increased emphasis on system and tool implementation, and applications to service practices, evidencing a maturation of the underlying principles.