XL: a platform for web services

ABSTRACT

We present a platform for Web services. Web services are implemented in a special XML programming language called XL [1, 2]. A Web service receives an XML message as input and returns an XML message as output. The platform supports a number of features that are particularly useful to implement Web services; e.g., logging, timetables, conversations, workflow management, automatic transactions, security. Our platform is going to be compliant with all W3C standards and emerging proposals. The programming language is very abstract and can be optimized automatically (like SQL). Furthermore, the platform allows to integrate Web services that are written in XL and other programming languages.

REFERENCES

• 1: D. Florescu, A. Grünhagen, and D. Kossmann. An XML Programming Language for Web Service Specification and Composition. Technical report, Technische Universität München, 2001. http://xl.in.tum.de/publ.
• 2: D. Florescu and D. Kossmann. An XML Programming Language for Web Service Specification and Composition. IEEE Data Engineering Bulletin, June 2001.
• 3: Java 2 Enterprise Edition. http://java.sun.com/j2ee/tutorial.

INDEX TERMS

Primary Classification:
  H. Information Systems
  H.3 INFORMATION STORAGE AND RETRIEVAL
      H.3.5 On-line Information Services
          Subjects: Web-based services

Additional Classification:
  H. Information Systems
  H.4 INFORMATION SYSTEMS APPLICATIONS
      H.4.1 Office Automation
          Subjects: Workflow management

  I. Computing Methodologies
  I.7 DOCUMENT AND TEXT PROCESSING
      I.7.2 Document Preparation

          Nouns: XML

General Terms:
Algorithms, Documentation, Theory