Development and Deployment of Web Services and
Web Services-based processes.



Dimka Korastoyanova, MSc.
Ph.D. Program “Enabling Technologies for the
e-Commerce”
Darmstadt University of Technology, Germany

The proposed tutorial is organised in two parts:
on the one hand it focuses on basic web service concepts; on the other hand it provides a practical experience in the web. The first part of the tutorial deals with the fundamental concepts of the web services paradigm, the standard protocols for development of web services (XML, SOAP,WSDL, UDDI), and the currently available proposals for web services-based business processes (WSFL, XLang, BPML, BPEL4WS).
The second part of the tutorial tackles the practical issues of the process for development and deployment of web services and web service flows.
As a beginning, we go into issues concerning the choice of a platform, which includes the Apache Tomcat Server, the Apache AXIS engine, and IBM’s BPWS4j engine, and consider the arguments for and against the choice of this web service platform.
Secondly, we illustrate in details the process of creation (implementation, deployment and registration) of web services.
Thirdly, building on these results, we introduce the full procedure for development and deployment of BPEL web services process, providing a comprehensive example.

Tutorials Structure
I. Overview
II. Theoretical Part
1. Introduction representing a short overview of the existing standards,     specifications, implementations and tools for Web Services and Web     Servicesbased process development.
2. The WSs protocol stack and the de facto standards:
• The basics: HTTP, XML, SOAP, WSDL, UDDI;
• Business processes: WSFL, XLang, BPML, BPEL4WS;
• Coordination and transactions support: XLang,
   WSCoordination, WSTransaction;

III. Practical Part:
1. Software Platform details: Apache Tomcat Server, Apace AXIS, and BPWS4j.
2. Creation, deployment and registration of WSs.
3. Development and deployment of Web Services-based     
    processes with BPWS4j.
IV. Conclusion

Background Knowledge:
Participants are expected to have basic knowledge in XML and Java programming.
It is advisable but not a must to be familiar with Apache Tomcat Server and the AXIS engine. Some basic knowledge of web services and the foundations of workflow would additionally facilitate the comprehension of the practical examples.
Target Audience:
This is an introductory tutorial dealing with the WS paradigm features. It is suitable for both theoretically oriented researchers and practitioners, who would like to take a closer look at the specifics of the WSs and WS-based applications.

Information about the speaker:
Address:
Dimka Karastoyanova, M.Sc.
Ph.D. Program “Enabling Technologies for the e-Commerce”
Darmstadt University of Technology, Germany
Wilhelminenstrasse 7
D-64283 Darmstadt
Germany
e-mail: dimka@gkec.informatik.tu-darmstadt.de
Telephone: +49 6151 16 6705
Fax: +49 6151 16 6707

Short Curriculum Vitae
Dimka Karastoyanova graduated from the Technical University of Sofia, Bulgaria, with a Bachelor and a Master degree in Industrial Engineering. She earned a Master’s degree in Computational Engineering at the University of Erlangen-Nuremberg, Germany.
Currently she is a Ph.D. Student at the Ph.D. Program “Enabling Technologies for the e-Commerce” at the Darmstadt University of Technology, Germany. Her research topics include Database Systems, e-Commerce, Web Services, Business Process modelling and management, compositions of Web Services, transactional support for Web Service-based applications.