File Name: web services principles and technology michael papazoglou .zip
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SOA is an architectural style whose goal is to achieve loose coupling among interacting software agents. A service is a unit of work done by a service provider to achieve desired end results for a service consumer.
Both provider and consumer are roles played by software agents on behalf of their owners. Service orientation is a means for integrating across diverse systems. Each IT resource, whether an application, system, or trading partner, can be accessed as a service. These capabilities are available through interfaces; Service orientation uses standard protocols and conventional interfaces - usually Web services - to facilitate access to business logic and information among diverse services.
Specifically, SOA allows the underlying service capabilities and interfaces to be composed into processes. Each process is itself a service, one that now offers up a new, aggregated capability. Because each new process is exposed through a standardized interface, the underlying implementation of the individual service providers is free to change without impacting how the service is consumed. SOA looks like object-oriented programming principles applied to services.
However it's more than encapsulation and interfaces SOA is a design component of business process modeling , enterprise-oriented web 2. SOA is a way to design software that provide services to either end-user applications or to other services distributed in a network via published and discoverable interfaces.
Service descriptions are used to advertise the service capabilities, interface, behaviour, and quality. Services are described in service registry and provide the means for the discovery, selection, binding, and composition of services.
The Service interface description publishes a service signature. The service capability description defines the purpose and expected results of the service. The service behavior description describes its behavior during execution e. Finally, the Quality of Service description publishes various service quality attributes. Summarized, SOA provides the basic operations necessary to describe, publish, find and invoke services.
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W ll, We work witlr leading authors to develop the strongest educational materials in. Views 4 Downloads 0 File size 49MB. Description: This document is the first tutorial in a series of tutorials for programmers lea Page 1 of 18 Descriptio. W ll, We work witlr leading authors to develop the strongest educational materials in computing, bringing cutting-edge thinking and best leaming practice to a global market Under a range of well-known imprints, including Prentice Hall, we craft high-quality print and electronic publications which help readers to understand and apply their conrent, whether studying or at work To find out more about the complete range of our publishing, please visit us on the World Wide Web at: www.
This book constitutes the thoroughly refereed proceedings of five international workshops held in Thessaloniki, Greece, in conjunction with the 26th International Conference on Advanced Information Systems Engineering, CAiSE , in June The 36 papers presented together with an invited Web-based applications. Du kanske gillar. Spara som favorit. Skickas inom vardagar. Web services allow new and improved ways for enterprise applications to communicate and integrate with each other over the Web and, as such, are having a profound effect on both the worlds of business and of software development.
This course covers the basic standards that enable web services: SOAP, WSDL, and UDDI. Web Services: Principles and Technology, Michael Papazoglou, Prentice Hall; 4, Chapter 4: SOAP: Simple Object Access Protocol, pdf.
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