Web Service Contract Design and Versioning for SOA Review

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Web Service Contract Design and Versioning for SOA ReviewI just wanted to let other Kindle owners in the IT profession know that the content of this book is as good as the other reviews indicate, but you should buy the paper edition rather than the Kindle edition.
Most of the xml in the Kindle edition is unreadable, due to its being truncated at the left margin, and sometimes at the bottom of the page, as well. Some of the sidebar content has the same problem.
All in all, there's just too much content missing from the Kindle edition. With the hard copy being just ten dollars more, it's the better choice.Web Service Contract Design and Versioning for SOA OverviewThe Ultimate Guide for Designing and Governing Web Service ContractsFor Web services to succeed as part of SOA, they require balanced, effective technical contracts that enable services to be evolved and repeatedly reused for years to come. Now, a team of industry experts presents the first end-to-end guide to designing and governing Web service contracts. Writing for developers, architects, governance specialists, and other IT professionals, the authors cover the following areas:Understanding Web Service Contract Technologies Initial chapters and ongoing supplementary content help even the most inexperienced professional get up to speed on how all of the different technologies and design considerations relate to the creation of Web service contracts. For example, a visual anatomy of a Web service contract documented from logical and physical perspectives is provided, along with a chapter dedicated to describing namespaces in plain English. The book is further equipped with numerous case study examples and many illustrations.Fundamental and Advanced WSDLTutorial coverage of WSDL 1.1 and 2.0 and detailed descriptions of their differences is followed by numerous advanced WSDL topics and design techniques, including extreme loose coupling, modularization options, use of extensibility elements, asynchrony, message dispatch, service instance identification, non-SOAP HTTP binding, and WS-BPEL extensions. Also explained is how WSDL definitions are shaped by key SOA design patterns.Fundamental and Advanced XML SchemaXML Schema basics are covered within the context of Web services and SOA, after which advanced XML Schema chapters delve into a variety of specialized message design considerations and techniques, including the use of wildcards, reusability of schemas and schema fragments, type inheritance and composition, CRUD-style message design, and combining industry and custom schemas.Fundamental and Advanced WS-PolicyTopics, such as Policy Expression Structure, Composite Policies, Operator Composition Rules, and Policy Attachment establish a foundation upon which more advanced topics, such as policy reusability and centralization, nested, parameterized, and ignorable assertions are covered, along with an exploration of creating concurrent policy-enabled contracts and designing custom policy assertions and vocabularies.Fundamental Message Design with SOAPA broad range of message design-related topics are covered, including SOAP message structures, SOAP nodes and roles, SOAP faults, designing custom SOAP headers and working with industry-standard SOAP headers.Advanced Message Design with WS-AddressingThe art of message design is taken to a new level with in-depth descriptions of WS-Addressing endpoint references (EPRs) and MAP headers and an exploration of how they are applied via SOA design patterns. Also covered are WSDL binding considerations, related MEP rules, WS-Addressing policy assertions, and detailed coverage of how WS-Addressing relates to SOAP Action values.Advanced Message Design with MTOM, and SwADeveloping SOAP messages capable of transporting large documents or binary content is explored with a documentation of the MTOM packaging and serialization framework (including MTOM-related policy assertions), together with the SOAP with Attachments (SwA) standard and the related WS-I Attachments Profile.Versioning Techniques and StrategiesFundamental versioning theory starts off a series of chapters that dive into a variety of versioning techniques based on proven SOA design patterns including backward and forward compatibility, version identification strategies, service termination, policy versioning, validation by projection, concurrency control, partial understanding, and versioning with and without wildcards.Web Service Contracts and SOAThe constant focus of this book is on the design and versioning of Web service contracts in support of SOA and service-orientation. Relevant SOA design principles and design patterns are periodically discussed to demonstrate how specific Web service technologies can be applied and further optimized. Furthermore, several of the advanced chapters provide expert techniques for designing Web service contracts while taking SOA governance considerations into account.About the Web Siteswww.soabooks.com supplements this book with a variety of resources, including a diagram symbol legend, glossary, supplementary articles, and source code available for download.www.soaspecs.com provides further support by establishing a descriptive portal to XML and Web services specifications referenced in all of Erl's Service-Oriented Architecture books.

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Service-Oriented Architecture (SOA): Concepts, Technology, and Design Review

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Service-Oriented Architecture (SOA): Concepts, Technology, and Design ReviewThis book is superb. I have read every SOA book available (up until Apr/06) because it's part of my job as a technology research analyst and all-around techno-geek. From those that I have read and studied, this is the only one I feel compelled to write a review about. AND - because I did have to go through it in such detail I'm going to raid my research notes and share with you a detailed review of not just the book, but each of its chapters.
Chapter 1 - Introduction
Nothing special here, this is just a chapter that introduces the rest of the book. Call it a glorified table of contents if you will. At first I felt like skipping it altogether, but then I did what I'm supposed to do for my job and that is read each and every part. In the end, I'm glad I took the time for two reasons: By reading a summary of each of the chapters I got a good feel for what this book was going to cover and what it wasn't going to cover. Secondly, I liked the author's intro stuff about ideal and not so ideal (real) SOA. Kind of insightful and stinging at the same time. Still, though, this is still just a description of other chapters. It's also a chapter you can get for free at the book's web site.
Chapter 2 - Case Studies
Here the author provides background information for the two companies he uses as case studies. If you're into case studies, then you'll definitely want to read through this. But - I found the subsequent samples pretty easy to follow and I think you could get away with skipping this chapter if you really wanted to.
Chapter 3 - Introducing SOA
Here's where I started getting into the meat of the book. If you think you don't understand what soa is or what the industry's made of it or turned it into then you need to read this chapter. It breaks it all down and builds it all up again in a very systematic manner. Make sure you leave this chapter with an understanding of how primitive and contemporary variations of soa are different because the author uses these terms later.
Chapter4 - The Evolution of SOA
Finally someone who makes a distinction between specification and standard and gets it right. This chapter talks about the soa industry and how vendors are responsible for soa but are also causing problems at the same time. How standards organizations are working for soa but also competing at the same time. Pretty interesting stuff and even though this was the least technical chapter, not once was I bored. It ends by comparing Ssoa with older architectures. I especially like how the author differentiates between soa and "traditional" distributed architecture that uses web services. (hint: rpc has a lot to do with it)
Chapter 5 - Web services and primitive soa
I read the author's first soa book last year and this chapter seemed to repeat a few sections from that. But if I remember correctly it goes into more detail and provides case study examples that the first book didn't have. If you're a web services veteran you can probably skip this one.
Chapter 6 -Web Services and Contemporary SOA (Part I: Activity Management and Composition)
Here he goes up a gear and dives right into that scary thing we've been calling ws-* Everything from transactions to context mgmt to orchestration and so on is covered. I really felt the author did a brilliant job building this chapter up by starting with simple meps and building up to activity management and bpel and so on. He really showed how each adds a layer over the other and how all add layers to soa.
Chapter 7 - Web Services and Contemporary SOA (Part II: Advanced Messaging, Metadata, and Security)
Yup, the rollercoast ride continues here as he gets into addressing, reliable messaging, security and other ws-* specs. All of these are specs I had already heard about and I think this type of coverage is appropriate forwhere soa is going. I forgot to mention that in this chapter and 6 he introduces 'in plain english' sections that are hilarious. They are humorous analogies that compare these complex technologies to analogies he writes about a car wash. Good, fresh writing in the usual dull and dry techno world.
Chapter 8 - Principles of Service-Orientation
Essentially a whole bunch of theory about designing services and then eight specific 'principles' (dos and don'ts) about how to design services the right way for soa. I had to go back and reread this chapter after I finished the book. I sort of glanced thru it at first but then found out that later chapters really use these principles. When I went through it again I actually thought this was pretty important stuff. This really is the next oo. You can get this chapter for free at the book web site too.
Chapter 9 - Service Layers
STudy this if you're a application architect or enterprise architect. It shows what you canh do with services built with service-orientation. The diagrams showing different types of layers combined together are pretty cool.
Chapter 10 - SOA Delivery Strategies
If you're a PM you'll love this chapter. It gets into the different phases in a soa project and how you can reorganize them using 'delivery strategies' depending on your budgets and priorities. I'd pay extra close attention to the pros and cons parts where, after documenting these strategies in abstract, the author points out their true colors.
Chapter 11 + 12 - Service-Oriented Analysis I + II
Don't know where to start when it comes to figuring out your services? Well, the author lays it all out here. He provides a process for systemtically breaking down your business logic and divying it up into services. Chapter 12 is like an instruction manual about service model. Being froma web services background this was all new to me.
Chapter 13 - 16 - Service-Oriented Design I, II, III, IV
Roll up your sleeves man, because here is where you get into the real muck of building web services for an soa. There are a bunch of processes that hash out the nitty gritty of wsdl, xsd, and bpel and show you how to build services for the types of layers set up in ch.9. Tons of code and case study samples and tips for design. This is probably the most valuable part of the book for developers and architects.
Chapter 17- Fundamental WS-* Extensions
I forgot tomention that in chapters 6 and 7 no code samples are given. He only covered ws-* specs conceptually. All of the corresponding code is placed in this chapter. A bit inconvenient if you're a developer who wants to see the code while learning about the spec, but not tragic. The neat thing is he ties the code samples into the case studies. This was my first experience with ws-* in real world tyhpe scenarios.
Chapte r18 - SOA Platforms
The author documents j2ee and .net frameworks here first in total abstract and then about how they support the different parts of soa. This was very interesting because it related a lot of the concepts stuff to actual technology and the let you compare different technologies in how they support soa.
I recommend this book to colleagures and clients and I'm recommending it here. If you have questions about SOA then this book probably has the answers you're looking for. I say that because by the time I finished reading it I ran out of questions myself.
Service-Oriented Architecture (SOA): Concepts, Technology, and Design OverviewThis is a comprehensive tutorial that teaches fundamental and advanced SOAdesign principles, supplemented with detailed case studies and technologiesused to implement SOAs in the real world.***We'll have cover endorsements from Tom Glover, who leads IBM's WebServices Standards initiatives; Dave Keogh, Program Manager for Visual StudioEnterprise Tools at Microsoft, and Sameer Tyagi, Senior Staff Engineer, SunMicrosystems. All major software manufacturers and vendors are promotingsupport for SOA. As a result, every major development platform now officiallysupports the creation of service-oriented solutions.Parts I, II, and III cover basic and advanced SOA concepts and theory thatprepare you for Parts IV and V, which provide a series of step-by-step "howto" instructions for building an SOA. Part V further contains coverage of WS-*technologies and SOA platform support provided by J2EE and .NET.

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