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Next Generation SOA: A Real-World Guide to Modern Service-Oriented Computing (Anglais)

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4,1 étoiles sur 5 11 Commentaires sur Amazon.com us-flag |

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Amazon.com: 4.1 étoiles sur 5 11 commentaires
4 internautes sur 4 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 For experienced SOA developers the book is a very good influence and will nudge your thinking in a very ... 30 décembre 2014
Par Clint Lewis - Publié sur Amazon.com
Format: Format Kindle Achat vérifié
I read this eBook in about 4 hours and found it really helped me prepare for how to think about SOA in our organization's use of the same. As an Oracle stack developer (SOA, BPM, ADF) I think I probably now understand more about how SOA *should* be used and thought about than most developers and managers in our company. General, contemporary, and expert information is exactly what you want before launching into the details of SOA use within a large company, and this book provides that. For experienced SOA developers the book is a very good influence and will nudge your thinking in a very useful direction.

I particularly liked the case study chapter as it illustrates not just the mechanics of SOA implementation, but how the company culture has to change in order to maximize SOA success inside the company. The only thing in the book I thought a bit overdone was the sometimes repetitive, and nearly the same diagrams, but this is a minor quibble. In my opinion this book should be read by the CTO, CIO, and everyone else that will be involved in the use of SOA within a company. This is a $10, 4-5 hour read that could change a company's efficiency and competitiveness dramatically if the principles are applied correctly. It's really a book about a modern way of thinking about SOA.
4.0 étoiles sur 5 Four Stars 27 juillet 2016
Par Hernán Quevedo - Publié sur Amazon.com
Format: Format Kindle Achat vérifié
It is a good book on SOA, it takes you right through the necessary concepts and exemplifies well.
0 internautes sur 2 ont trouvé ce commentaire utile 
5.0 étoiles sur 5 Five Stars 21 février 2015
Par Scott B. - Publié sur Amazon.com
Format: Format Kindle Achat vérifié
Clearly written and excellent reference!
7 internautes sur 7 ont trouvé ce commentaire utile 
2.0 étoiles sur 5 Dry, terse text which misses its mark 28 mai 2015
Par Andrew Johnston - Publié sur Amazon.com
Format: Broché
This book sets out to provide a concise overview of the current state of, and best practices for, Service Oriented Architecture. While it may achieve that for some managerial readers, it is simultaneously too general for those with more background, and may be too terse for those with less technical understanding.

The authors and editors have clearly set themselves the admirable aim of producing a short and concise overview of the field. Unfortunately in the quest for brevity they have ended up with a terse, dry and dense writing style which is very difficult to read. At times it feels almost like a game of "buzzword bingo". I frequently had to re-read sentences several times to understand the authors' intended relationships between the elements, and I'm a very experienced integration architect.

At the same time, for a book on architecture there are very few explanatory diagrams, wordy descriptions being used instead. To add insult to injury a few low-value diagrams such as one depicting the cycle of interaction between business and IT change drivers are used repeatedly, when once would be enough.

The first chapter provide a overview of service orientation and its key principles, characteristics, goals and organisational implications. This is followed by a chapter on service definition and composition. Ironically this part of the book is is quite repetitive, but manages to omit some key concepts. There's no real concrete explanation of what a service is or does – maybe that's taken as read, but a formal definition and some examples would go a long way. Likewise there's nothing at this point on basic concepts such as service contracts and self-description, synchronous vs asynchronous operation or security. The second chapter goes into some detail on the idea of service composition but only really deals with the ideal green-field case where functionality can be developed new aligned exactly to business functions.

The following chapter on the SOA manifesto is better, but again doesn't recognise the realities of real enterprise portfolios, with legacy systems, package solutions and external elements which must be maintained and exploited, and non-functional priorities which must be met.

Chapter 5 deals with service-related technologies and their potential interactions. This is good, and for me represented the core value of the book, but is crying out for some diagrams to supplement the lengthy text. There are good notes on service definition under Model Driven Service Design, but this key topic should really have been a major section in Chapter 3 in its own right. The statements about technical architecture are rather simplistic, with an overall position of "this is expensive and difficult, or just use the cloud" which is not necessarily right for all organisations.

The next chapter, on business models, is very prescriptive. It is also slightly misleading in some places about the role of IT in transactional services - such services are delivered by a business unit, possibly but not necessarily enabled by and carried through an IT service. It would be perfectly viable in some cases for specific services to have a manual implementation. This is well explained in the case study, but not here or in the Business Process Management section of the previous chapter.

The final chapter of the main text is a "case study" describing the wholesale transformation of a car rental company through adoption of service, agile and cloud approaches. It feels slightly contrived, especially in terms of its timeline, the preponderance of successes, and the surprising lack of resistance to CIO-led business change. However it fills a useful gap by explaining much better than the technologies chapter how the different technologies and approaches fit together and build on one another.

Appendix A is a taster for the other books in the series. Unfortunately the content is presented as small images which cannot be resized and are almost unreadable in the Kindle version. It has also been "summarized", with the result that it appears to add very little meaningful detail to what has already been said.

Appendix B is a useful expansion of the main text regarding organisational preparation, maturity levels and governance for SOA. I would personally have been tempted to merge the first two parts to the main text rather than positioning them as an appendix, where they are necessarily repetitive of some material which has already been read.

Appendix C is another taster for one of the other books in the series, this time with an overview of cloud computing. While this is at a fairly high level, it's a useful and well-written overview for those unfamiliar with the concepts.

Overall this is a frustrating book. There is some good material, but missing key "reality checks" and presented in a terse, text-heavy style which makes it harder to read than it should be.
0 internautes sur 6 ont trouvé ce commentaire utile 
3.0 étoiles sur 5 Three Stars 29 décembre 2014
Par Arseny Nazarkin - Publié sur Amazon.com
Format: Broché Achat vérifié
Too general
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