Web Services
Akhil Sahai and Sven Graupner, Hewlett-Packard Laboratories
Wooyoung Kim, University of Illinois, Urbana-Champaign
Introduction
The Genesis of Web Services
Tightly Coupled Distributed Software Architecture
Loosely Coupled Distributed Software Architectures
Client Utility Systems
Jini
TSpaces
Convergence of the Two Trends
Web Services Today
Web Services Description
Web Services Discovery
Web Services Orchestration
Intra-Web Service Modeling and Interaction
Inter-Web Service Modeling and Interaction
Web Services Platforms
Security and Web Services
Single Sign-On and Digital Passports
Web Services Security Standards
The Future of Web Services
Dynamic Web Services Composition and Orchestration
Personalized Web Services
End-to-End Web Service Interactions
Future Web Services Infrastructures
Conclusion
Glossary
Cross References
References
Further Reading
INTRODUCTION
There were two predominant trends in computing over the past decade—(i) a movement from monolithic software to objects and distributed components and (ii) an increasing focus on software for the Internet. Web services (or e-services) are a result of these two trends.
Web services are described as distributed services that are identified by URI's, whose interfaces and binding can be defined, described, and discovered by XML artifacts, and that support direct XML message-based interactions with other software applications via Internet-based protocols. Web services that perform useful tasks would often exhibit ...
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