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Understanding Web Services: XML, WSDL, SOAP, and UDDI Paperback – May 23, 2002

ISBN-13: 078-5342750812 ISBN-10: 0201750813 Edition: 1st

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Product Details

  • Paperback: 368 pages
  • Publisher: Addison-Wesley Professional; 1 edition (May 23, 2002)
  • Language: English
  • ISBN-10: 0201750813
  • ISBN-13: 978-0201750812
  • Product Dimensions: 7.3 x 0.9 x 9 inches
  • Shipping Weight: 1.5 pounds (View shipping rates and policies)
  • Average Customer Review: 3.3 out of 5 stars  See all reviews (27 customer reviews)
  • Amazon Best Sellers Rank: #1,410,418 in Books (See Top 100 in Books)

Editorial Reviews Review

Web services, the new way of stitching data and processing resources together to form elaborate, distributed applications, aren't like other software systems. They differ even from other architectures for distributed applications. In his fantastic Understanding Web Services, Eric Newcomer helps his readers figure out what Web services are all about. This book is better than any other book out there in helping readers come to grips with the terms, technologies, behaviors, and design requirements that define the Web services universe. It's remarkably light on code--Newcomer's logic appears to be that you should dig into the details of implementation only after you thoroughly understand the design concepts--and emphasizes definition and exposition of SOAP, UDDI, WSDL, and ebXML.

Newcomer's work looks and reads almost like a notebook, with succinct statements in the margin (for instance, "SOAP processors first have to check the mustUnderstand attribute, if any"), adjacent to paragraphs that go into greater depth. He's careful to call attention to differences among the relevant standards documents, and points out differences among implementations. Graphical learners may wish for more conceptual diagrams, as there aren't a lot of them here. Newcomer's prose is brilliant, though, and it's pretty easy to determine what he means. Perhaps best of all, Newcomer isn't cheap with his opinions and forecasts. It's helpful to read his informed feelings and predictions. --David Wall

Topics covered: The specifications, implementations, and popular trends that define the Web services movement. Conceptual coverage of Extensible Markup Language (XML), Simple Object Access Protocol (SOAP), Web Services Description Language (WSDL), and the Universal Description, Discovery, and Integration (UDDI) protocol fills these pages. Emphasis is on how it all works rather than on how to program for it.

From the Back Cover

Web services enable the new generation of Internet-based applications. These services support application-to-application Internet communication--that is, applications at different network locations can be integrated to function as if they were part of a single, large software system. Examples of applications made possible by Web services include automated business transactions and direct (nonbrowser) desktop and handheld device access to reservations, stock trading, and order-tracking systems.

Several key standards have emerged that together form the foundation for Web services: XML (Extensible Markup Language), WSDL (Web Services Definition Language), SOAP (Simple Object Access Protocol), and UDDI (Universal Description, Discovery, and Integration). In addition, ebXML (Electronic Business XML) has been specified to facilitate automated business process integration among trading partners.

This book introduces the main ideas and concepts behind core and extended Web services' technologies and provides developers with a primer for each of the major technologies that have emerged in this space. In addition, Understanding Web Services summarizes the major architectural approaches to Web services, examines the role of Web services within the .NET and J2EE communities, and provides information about major product offerings from BEA, Hewlett-Packard, IBM, IONA, Microsoft, Oracle, Sun Microsystems, and others.

Key topics include:

  • XML facilities for structuring and serializing data
  • How WSDL maps services onto communication protocols and transports
  • WSDL support for RPC-oriented and document-oriented interactions
  • SOAP's required and optional elements
  • Message processing and the role of intermediaries in SOAP
  • UDDI data formats and APIs
  • How ebXML offers an alternative to Web services that supports reliable messaging, security, and trading-partner negotiations

With Understanding Web Services , you will be well informed and well positioned to participate in this vast, emerging marketplace.


More About the Author

I recently started a new job as an integration architect at Credit Suisse in New York, within the CTO Department. I am formerly CTO at IONA Technologies and TP Architect at Digital Equipment Corporation (now part of HP).

I started my career in 1978 in Chicago, working on criminal justice applications for the State of Illinois. You know the opening scene of the "Blues Brothers" at Joliet Prison? I was there around the same time, on the way to and from interviewing and training guards to use our new online TP prisoner tracking system. After that I moved back east to design and develop the online order entry/inventory management system for worldwide subsidiaries of Salamon Ski.

After that I joined Digital Equipment Corporation. In those days (1984) it was hard to imagine a more secure job or better working environment. I often say I received my computer science education there. I had nearly 16 great years there, working with some of the best software engineers in the industry, including TP pioneers such as Jim Gray and Phil Bernstein, with whom I wrote "Principles of Transaction Processing."

During my first year at IONA (I started in November, 1999) I got the company involved with Web services and as an early contributor to SOAP, WSDL, and UDDI I started writing "Understanding Web Services" for Addison Wesley. The book won two awards, including a prestigious Jolt Award and the Web Services Journal Reader's Choice award (which was a popular vote award), and became one of the top selling Web services books.

That led to the opportunity to work on a follow-up book, "Understanding SOA with Web Services," for that I got some great help from Greg Lomow, a great technologist and senior consultant in the SOA field. This particular book is coming in very handy at my new job, and has sold well.

During the past couple of years Phil and I worked hard to "Principles of Transaction Processing" and bring it up to date to reflect all the changes in the TP industry during the past 12 years.

I hope you enjoy the books I've worked on, and if you have read one or more of them please consider posting your comments on Amazon. Thanks.

Customer Reviews

Forget this book unless you're looking for a very high level understanding of the associated XML specs and architecture.
Curt Smith
Wide and informed coverage is given to the subject area, and a comprehensive bibliography serves to provide a means of tracking down further information.
Brett Cameron
An excellent book for any business or IT executive that really needs to understand the concepts and implications of Web services.
Craig Anderson

Most Helpful Customer Reviews

44 of 46 people found the following review helpful By Mr. JKW on January 4, 2003
Format: Paperback
Eric Newcomer's "Understanding Web Services" provides for a solid theoretical overview into the world of the new web technologies, including XML, WSDL, SOAP and UDDI. For a newcomer into the field, this book is a good start to understanding to what these technologies are and what they can do for business.
Here are the topics that Newcomer addresses:
1. Introduction to Web Services (XML, WSDL, SOAP and UDDI)
2. XML - Describing Information
3. WSDL - Describing Web Services
4. SOAP - Accessing Web Services
5. UDDI - Registering Web Services
6. ebXML
7. Other Web Service technologies
8. How to Implement
Overall, this book is a great teaching and learning tool to the basics of web services. Newcomer does a fine job of describing the various technologies and trying to "dumb" down the technology to describe how it works. One of the great things about the book is the "margin" notes on each page that highlight the definitions and key concepts that he tries to highlight. This makes the book easy to follow along with and helps to reinforce the concepts. Overall, this is great for a textbook.
However, keep in mind that the subject is very technical so if you are not a techie there are parts where you WILL get lost. Overall though, you still come away with a good understanding of what these technologies are and how they can help your business.
Overall, Newcomer does a fine job of covering the various technologies and issues that deal with web services and how they can be applied to business. While the subject is technical and you may got buried in some parts the book's style is still easy to follow.
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45 of 48 people found the following review helpful By Brett Cameron on September 8, 2002
Format: Paperback
In my role as a solutions architect, I find myself having to read vast quantities of technical material, much of which is sadly lacking in substance, diluted to the point of uselessness, biased in a particular technology (or vendor) direction, or simply just poorly written. Eric Newcomer's book is a refreshing change from much of the material I have had the misfortune to read lately - it is a well-written work that provides the reader with an excellent overview of Web Services and the use of the associated technologies. The book provides a well-balanced discussion of the various key technology areas (XML, WSDL, SOAP, UDDI), and includes many useful insights into the issues associated with these technologies and where the technologies are heading, based on current industry usage and standards formulation. The history of each technology area is discussed, providing the reader with useful background information. Attention is paid to the salient points, rather than getting bogged down in unnecessary details that might be readily obtained elsewhere. To this end, it is worth noting that a most pleasing feature of this book is the inclusion of a comprehensive bibliography, allowing the reader to readily identify sources of more detailed information on particular subject areas, if required (many of the references are freely available via the Internet).
As clearly stated in the introduction, the book is intended for IT professionals who need to understand Web Services, how they work, and (most importantly) what they are good for - the book is not intended to describe how to implement Web Services using a particular product offering from IONA (Eric Newcomer is the IONS CTO) or any other vendor.
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34 of 37 people found the following review helpful By Srihari Mailvaganam on July 4, 2002
Format: Paperback
Getting a grasp of Web Services is immensely difficult. Every vendor has a different version - often twisting it to suite their commercial needs.
I have been working with the fundamentals for Web Services for over two years, and I have been amazed at the hype to which it has succumbed. Some of this hype is justified and it can be daunting separating facts from fiction.
I was pleased Eric Newcomer's book - it provided a relief from hype and grounds for clear thought. Mr. Newcomer approached this book from the ground-up and does not patronize the reader with unsubstantiated claims.
This book is recommended to the reader that is curious on Web Services and would like a book that can provide a launching pad towards understanding the subject.
In this book you will find:
- How Web Services evolved
- The technology that makes it happen
- The promises of Web Services
- Different software vendor's strategy on Web Services
You will not find how to get started on running your first Web Services projects - that information can be found online or in another book.
In this book you can expect to find the foundation that will give you a good perspective on Web Services. Upon reading this book, you will be able to discern which areas of Web Services that will interest you the most. Armed with this knowledge you will be able to read materials on Web Services, immune to being swayed by marketing hype.
Best wished on your Web Services journey - it is an exciting field.
I hope you find this review helpful - please let me know if you have any questions or suggestions.
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