e-book Business Process Execution Language for Web Services 2nd Edition

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Business Process Execution Language for Web Services Book Description:

Nor do they provide ways to describe the semantics of interfaces, the workflows, or e-business processes. In providing a standard descriptive structure BPEL4WS enables enterprises to define their business processes during the design phase. Wider business benefits can flow from this through business process optimization, reengineering, and the selection of most appropriate processes.

It begins with an overview of web services, showing both the foundation of, and need for, BPEL.

2008-10-22 CERIAS - Access Control and Resiliency for WS-BPEL

The BPEL language itself is explained in detail, with Code snippets and complete examples illustrating both its syntax and typical construction. Chapter 2 provides a detailed introduction to the Web Services Technology Stack. Chapter 3 discusses the composition of web services with BPEL. The reader gets familiar with BPEL process structure, partner links, sequential and parallel service invocation, variables, conditions, etc. Chapter 4 goes deeper into the BPEL specification and covers advanced features for modeling complex business processes.

Advanced activities, scopes, serialization, fault handing, compensations, event handling, correlation sets, concurrent activities and links, process lifecycle, and dynamic partner links are covered in detail. It describes the server architecture, tools, features, and common approaches for managing and debugging BPEL processes.

The appendix covers standard BPEL activities and elements, functions, attributes, and faults. He has co-authored several books and articles on. Juric holds a PhD in computer and information science. He has more than 20 years of work experience. His work has also been published in several journals and magazines and presented at conferences. A well known and a highly sought-after trainer, Dr.

Editorial Reviews

Sarang has conducted several training programs on the latest technologies for several top-notch IT companies. Sign up to our emails for regular updates, bespoke offers, exclusive discounts and great free content.

Log in to your account. I recommend this book for anyone starting out with BPEL or just looking to learn it. That is, why another language? Just a few years ago, XML reached a fairly stable state. But it turned out that WSDL is really best suited for describing a single Web Service, or a simple interaction between 2 such services. As the authors relate, business logic is far more complex. Especially for the main envisioned scenario of interactions between services scattered across a panoply of companies.

You might want an orchestration of services, built around a central co-ordinating service. Or in other cases, you might have a flow of business messages, without a central service. This is termed choreography. These are 2 extremes. You might have some combination of the two. And more complex cases can be imagined.


Business Process Execution Language

The book points out that WSDL basically ran out of steam. It lacks the expressive power to easily handle the above cases; if it can even do so. Hence, BPEL arose to describe such logic in a programmatic fashion. The authors then go on to flesh out BPEL as it currently exists.

  • Book Description.
  • Resurrection Initiation : The Process and the Joy.
  • Business Process Execution Language for Web Services 2nd Edition.

While some of the examples, written in XML, are fairly verbose, if you keep in mind the basic ideas, they should be understandable. You might also note that the book only touches on the possible complexity and nuances of business logic. It's fair to predict that in a few years, BPEL will be heavily expanded. I found that to effectively use these tools, though, you have to understand the concepts that make up BPEL - scopes, partner links, correlation sets etc. This book likely provides the best introduction to these concepts.

Business Process Execution Language for Web Services, 2nd Edition

I wished for a little more in-depth coverage of advanced topics, such as correlation and convoys, but I think more people have to gain experience using these before we can expect a book to present "best practices". In summary, if you are interested specifically in BPEL, this is likely the book you want to get. The code examples are not working! This is a response from the Publisher, Packt, in reply to the two reviews below New code examples have been available from the publisher's web site [ Please notice that the 2nd Edition of the book is about to be published in January This answers the complaints in the last two customer reviews, thank you.

This book introduces bpel using oracle bpel engine beyond that this book fall short of introducing the bigger picture in terms of soa. One person found this helpful.

An excellent book for beginners and for those who want to get familiar with advanced BPEL features. One can describe Web-service interactions in two ways: By doing so, it extends the Web Services interaction model and enables it to support business transactions. It also defines an interoperable integration model that should facilitate the expansion of automated process integration both within and between businesses.

Its development came out of the notion [3] that programming in the large and programming in the small required different types of languages. As such, it is serialized in XML and aims to enable programming in the large. The concepts of programming in the large and programming in the small distinguish between two aspects of writing the type of long-running asynchronous processes that one typically sees in business processes:.

In , IBM and Microsoft had each defined their own fairly similar, " programming in the large " languages: They specifically documented that this language "is proprietary and is not fully documented. If not discussing a specific version, the moniker BPEL is commonly used [ citation needed ].

BPEL is an orchestration language, and not a choreography language. The primary difference between orchestration and choreography is executability and control. An orchestration specifies an executable process that involves message exchanges with other systems, such that the message exchange sequences are controlled by the orchestration designer.

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A choreography specifies a protocol for peer-to-peer interactions, defining, e. Such a protocol is not directly executable, as it allows many different realizations processes that comply with it. A choreography can be realized by writing an orchestration e. The orchestration and the choreography distinctions are based on analogies: