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Developing Enterprise Web Services: An Architect's Guide: An Architect's Guide, by Sandeep Chatterjee, James Webber
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Takes a view of architecting and constructing enterprise-class Web services and applications. This book assesses the state of the Web services platform, offering practices and architectural patterns for leveraging the advantages of Web services and mitigating the risks.
- Sales Rank: #2909819 in Books
- Published on: 2003-11-24
- Released on: 2003-11-14
- Original language: English
- Number of items: 1
- Dimensions: 9.10" h x 1.40" w x 6.80" l, 2.12 pounds
- Binding: Paperback
- 592 pages
From the Back Cover
Build Web services with enterprise-class reliability, performance, and value
Web services are transforming IT, and represent a powerful new way to reduce cost and drive top-line growth throughout the enterprise. This book takes a no-nonsense view of architecting and constructing enterprise-class Web services and applications. The authors expertly assess the current state of the Web services platform, offering best practices and new architectural patterns for leveraging the advantages of Web services--and mitigating the risks.
- Build Web services and applications that meet enterprise requirements for security, mobility, transactions, QoS, workflow, portlets, management, and more
- Avoid the "bottomless pit" of application rewriting and maintenance overhead
- Architect applications to stay reliable even if some Web services go off-line
- Scale applications to support the inclusion of Web services from multiple partners
- Secure private information within Web services environments
- Develop high-value mobile Web service applications
- Includes a detailed case study
Whether you're an architect, developer, project leader, or manager, this book will help you deliver on the promise of Web services in your real-world enterprise environment.
About the Author
DR. SANDEEP CHATTERJEE is a seasoned technology expert and business professional with over a decade of hands-on contributions as a technologist, consultant, entrepreneur, and author. He is Chief Technology Officer of a startup focused on Web services delivery and management, and also serves as a Chief Technology Consultant for Fortune-100 and major not-for-profit organizations including Hewlett-Packard and ACCION International. Sandeep served on the Expert Group that specified the worldwide standard for mobile Web services, and was the lead of Hewlett-Packard's Web Services Mediation Platform. He was also Entrepreneur-in-Residence at FidelityCAPITAL, the VC arm of Fidelity Investments. Sandeep holds a Ph.D. in Computer Science from the Massachusetts Institute of Technology, where his research in mobile systems was selected as one of the top 35 inventions in the 35-year history of MIT's Laboratory for Computer Science.
DR. JAMES WEBBER is an architect and Web Services fanatic at Arjuna Technologies where he works on Web services transaction and Grid computing technology. Prior to joining Arjuna Technologies, he was the lead developer with Hewlett-Packard working on their BTP-based Web Services Transactions product--the industry's first Web Services Transaction solution. An active speaker and Web Services proponent, Jim is a co-author of the WS-CAF suite of specifications. Jim holds a B.Sc. in Computing Science and Ph.D. in Parallel Computing both from the University of Newcastle upon Tyne.
Excerpt. � Reprinted by permission. All rights reserved.
Preface
Web services technologies are fundamentally changing the software industry, making the role of enterprise IT organizations more strategic, and recasting the software vendor-consumer relationship. Web services are also being hailed by CEOs, CIOs, and CTOs as the next-generation vehicle for driving topline growth and controlling bottom lines. But, simply jumping on the Web services bandwagon won't lead to corporate success. Web services are simply a platform; how companies implement a solution using this new technology will determine their success, and ultimately their return on investment (ROI). In this book, we take a no-nonsense, strategic view of developing enterprise Web services and applications: looking at where the technologies are, where they are going, and how companies need to architect their own Web services solutions so as not to get left behind.
Web services platforms provide the functionality to build and interact with distributed applications by sending eXtensible Markup Language (XML) messages. Additional technology layers are constantly emerging, others are being refined, and still others are being discarded. The platform is essentially a moving target.
So as not to be left behind, companies are building and deploying their applications while work on the underlying platform continues. And, as with any industry standard initiatives, which require building consensus, the Web services platform will remain a work in progress for some time.
How can you build any meaningful application, let alone mission-critical enterprise applications, on such a platform? If you are a developer or an architect charged with building Web services or applications that consume Web services, you have to know where the platform is today, and where it is going. Otherwise, the endless pit of application rewrite and maintenance overhead will far outweigh any benefits that can be garnered from this promising new technology.
Real world, enterprise Web services and applications cannot be developed by simply reading through the SOAP (Simple Object Access Protocol) or the WSDL (Web Services Description Language) specifications. Developers must understand a number of different standards and technologies, and more importantly, their inter-relationships as well as best practices for their use.
Consider an e-business application that requires interaction between multiple partner Web services. Understanding SOAP and WSDL gives developers the ability to write Web services and consume them within their application. But, how must the application be architected to be reliable in case some Web services become unavailable? How can an application be written to seamlessly scale to support new Web services from a growing list of strategic partner companies? What are the best practices for developing mobile Web service applications, and how can individual Web services be created to support quality-of-service (QoS)? How can transactional guarantees or atomic coordination between multiple, independent Web services be supported by applications? And, how can all of this be done securely so that corporate and individual information and intellectual property are safeguarded?
In this book, we focus on how to develop Web services and applications within real world enterprise environments. We describe not only the vanilla Web services platform consisting of SOAP (Simple Object Access Protocol), WSDL (Web Services Description Language), and UDDI (Universal Description, Discovery, and Integration), but also build upon this to include the other technologies, standards, and emerging standards that provide support for transactions, security and authentication, mobile and wireless, quality-of-service, conversations, workflow, interactive applications and portals, as well as systems management.
We discuss the opportunities represented by Web services and, more importantly, describe best practices and architectural patterns for building enterprise systems that position you and your organization to most fully leverage those opportunities. We do not summarize any one Web services standard, but instead provide a sufficiently thorough discussion of all of the critical technologies and standards, as well as their inter-relationships, that are necessary for building enterprise Web services and applications. Our focus is on developing enterprise Web services and applications based on industry standard Web services technologies, not on summarizing standards.
Most helpful customer reviews
10 of 11 people found the following review helpful.
Nice Vendor-Neutral Description
By W Boudville
Interested in designing a Web Service? But you have never done so? Well, texts have started to appear; the latest being this one by Chatterjee and Webber. It has several merits. Perhaps the strongest is that it does not take sides in the J2EE versus Microsoft's .NET debate. Wait a minute, you might say! You have heard enough about Web Services to know that it is vendor and platform independent, much like HTML, which is an industry standard. So how could a book on Web Services NOT be neutral?
Well, consider how HTML is a standard, but different browsers render an HTML page slightly differently. And HTML is pretty simple, remember. Now consider that Web Services is far more complex. The XML messages going to and from a WS are vendor neural. But, as is made clear by the examples in the book, the XML does not describe the processing logic implementation on a WS provider, by deliberate design, to make things loosely coupled. But if that provider has, say, a transaction capability, then you can get into the nuances of implementation.
Thus, if for example you get a book on J2EE WS, that may be fine. But it may also be hard to disentangle the truly neutral design details from the necessarily hairy implementation.
The neutrality of this book should be a design virtue to you. Look, if you are going to build a WS, you probably already have preferences for .NET or J2EE (or something else). So, indeed, do get a WS book specific to that platform. But consider this book as a good second opinion, and much cheaper than hiring a consultant.
8 of 9 people found the following review helpful.
More stuff less chaff !!
By Ajith Kallambella
Consider this - Web Services and SOAP is perhaps the only recallable evolution of technology that has witnessed the single largest involvement of standards bodies and industry bellwethers. The result? A puzzling plethora of proffered protocols that continues to confuse both sideliners and early adopters every day.
While managers are finding it increasingly difficult to understand the direction, developers are craving for clarity, consistency and a unified approach for WS adoption. "Give me the tools" they cry every day, while they keep adding to their "To Read" list a handful of new acronyms every week. The big question is, when can we build Rome, if at all?
With a gentle and brief (thank god!) introduction to underlying concepts such as SOAP, XML and UDDI, authors start talking about broader concerns - conversation, transaction, security, workflow, QoS and everything in between. While accentuating nuances of evolving standards and guessing the future trends, authors offer strategies, patterns, and tips on pitfalls to avoid. They skirt around the political interoperability issues around J2EE and .NET and focus purely on the standards. Architect's Note included at the end of every chapter makes title justified.
An implementation of WS-based ordering system presented as a case study concludes the book by bringing it all together through excellent step-by-step approach.
Although almost a year old, this book can be a survival guide for people in the trenches and the ROI-Savvy managers as well. It helps you tell the wheat from the chaff.
Ajith Kallambella
(...)
7 of 8 people found the following review helpful.
Chief Scientist
By M. Siddalingaiah
This is a surpringly well written, well organized book. Just about all of the major web service technologies are covered in just enough detail to give the reader a good understand of how they work and why they are needed. In addition, there are lots of simple, yet complete code samples that prepare the reader for detailed specifications and API documentation.
The book also includes background coverage of fundamental XML concepts, such as XML schema. It is worthwhile as a reference alone.
This book is much more than SOAP, WSDL, and UDDI (although these are covered in detail). This book includes advanced topics such as Web Services Conversation Language (WSCL), workflow, and transactions. The examples are easy to understand and complete.
Overall, this is a professionally written book for professionals.
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