Web Service Technologies

Abstract

In this literature review we will talk about web service technologies. In the first part I will talk about the concept of services, and specifically web services. Moreover we will discuss about web services architecture, its components and their functionality. This literature review goes on discussing operations in the service-oriented architecture. Key topics that leave a mark in this study are also characteristics of web services among which loose coupling and ability to be synchronous or asynchronous are worth mentioning. The aim of this literature review is to provide an overview and an analysis of recent developments and standards in the field of web services as well as to discuss the benefits they offer. In addition, we will discuss ebXML and UDDI as two standards for discovering and registering web services.

Key concepts: web services, service oriented, web service architecture, SOA, SOAP, WSDL, ebXML, UDDI.

Contents

Web service technologies 1

Abstract 2

Web services 4

Web service definition 4

Web service architecture 5

Operations in the SOA 5

Web services characteristics 6

Benefits of using Web Services 7

Web Services Technologies 7

Messaging Protocol 7

Simple Object Access Protocol 8

Structure of SOAP Messages 8

The SOAP communication model 8

Describing Web Services 9

Registering and Discovering Web Services 10

Electronic Business Extensible Markup Language (ebXML) 10

Universal Description, Discovery and Integration (UDDI) 10

Conclusions 11

References for citations 12

Bibliography imported from Zotero 12

Web services

Before dwelling upon the abstract world of web services we discuss about the nature of a service. Thomas Erl in his book “Service-Oriented Architecture: A Field Guide to Integrating XML and Web Services” talks about the nature of a service. He claims that services are indepented building blocks that when