The material is presented in a practical way, around a simple business application. This makes the technologies more concrete and easier to understand. Fortunately, the reader is not overwhelmed by endless code listings – though there are enough nuts and bolts to make the concepts understandable.

Key concepts such as vocabularies, schemas, and portals are explained well. The book also touches on related technologies, such as RSS, XSLT, SOAP and UUDI. All in the context of a practical use case. I found the examples useful even if I design community based portals and not e-Business applications.

Hopefully the book will lay down the foundation for standards in schema development.
Rating: 4 / 5

At the same time, the book provides a valuable introduction to a range of XML and e-Business technologies for those more familiar with traditional approaches. I found it answered a lot of questions I had about XML which had not been addressed by reading more typical “how to” books, so this book bridges the divide both ways.

The book starts out by setting out its aim – to bridge the XML and UML communities, and provides a high-level overview of both areas. It then focuses in on the key issue of e-Business integration, both as a common challenge and an area which will naturally affect both communities.

In subsequent chapters the author discusses defining a business vocabulary, and shows how an XML vocabulary can be modelled in UML, or generated from it. Having established this basis the author then discusses a number of XML-related standards, including XMI, XPath, XPointer, XLink, XML DTDs and Schemas, and XSLT, in each case using UML models to explain how the pieces fit together.

Finally, the last few chapters present an overall e-Business architecture based around the examples in the rest of the book, bringing all the pieces together in the context of Web Services.

It’s the curse of all technical writers and publishers that whatever you write is rapidly out of date, and this book suffers a little from that. Published in 2001 it views several key standards (such as XSD and core Web Service protocols) as “proposals”, and frequently omits details from examples because of this uncertainty. A reader would be well advised to supplement it with more up to date reading around the technical details.

That said, this book is well written, easy to read, and covers a niche which is still almost unoccupied. The companion web site backs the book up with some valuable material, including a free downloadable tool for XML modelling, generation and reverse-engineering.

I’d love David to do a second edition, moderately refreshed to present a 2004 view of the various standards and how they fit together. The core of the book wouldn’t have to change. Until that book turns up, I’m happy to recommend this one.
Rating: 4 / 5

A must read for anyone interested in modeling, UML or how XML should be used in eBusiness.
Rating: 5 / 5

Overall, its a good book as an overview to the whole XML modelling approach and it is great for a beginner or novice in the area. It explains the concepts quite clearly and provides some VERY SIMPLE examples.

But if you are looking for a book that guides you along on the “how to” aspect and application of knowledge, then this book doesn’t quite have enough “meat” to be of much use.

In summary, for beginners only.
Rating: 3 / 5