Tools for Design of Composite Web Services

Ths tutorial will begin with an overview of the underlying goals and assumptions of the web services paradigm, from the perspectives of both emerging standards and the semantic web services community. It then reviews key standards in the area, as these provide some of the basic building blocks to be used by the web services paradigm, and will influence the form that this paradigm eventually takes. Next, the tutorial will identify fundamental aspects for modeling of web services and their compositions. The tutorial then examines approaches and technologies that are relevant to the problem of (manual or automated) composition of web services. The final topic of the tutorial concerns research questions arising from the web services paradigm that are very interesting to the database community. These focus on issues such as the development fo abstractions to enable querying and manipulating web services and behavior models.