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From the Back Cover
A software system is successful if it meets the purpose it was built for. Requirements engineering (RE) is the process of discovering that purpose, by identifying stakeholders and their needs. Many requirements engineering techniques carry over to service oriented architecture (SOA) which is an architectural style of software engineering where functionality is grouped around business processes and packaged as interoperable services.
Starting with an introduction to the concepts of SOA, relevant standards and technologies, such as Web Services and Enterprise Service Bus (ESBs), Ian Graham presents a range of modern requirements engineering techniques – from those directed at modelling business processes and objectives to advanced techniques for specifying business use cases. He then illustrates how these techniques integrate seamlessly with methods for specifying systems iteratively in terms of use cases, services, types, components and business rules.
Building on his 20 years experience, the author addresses several less formal or ′soft′ techniques for eliciting knowledge and specifying both requirements and systems. Making a clear distinction between requirements and systems. Making a clear distinction between requirements and specification, this book challenges some of the informal specification techniques that are in wide use today and can jeopardize SOA projects.
Key Features include:
- A clear exposition of the principles of SOA, how to model it – and how to get it wrong
- An introduction to business process modelling approaches and notations
- A comprehensive range of requirements modelling techniques from the detail to large scale enterprise models
- Coverage of Web Services, Business Process Management (BPM) and other key standards
- An appendix of patterns to help you apply the techniques to actual projects quickly
Requirements Modelling and Specification for Service Oriented Architecture shows you how to apply existing requirements and specification techniques to a SOA programme. It provides an invaluable companion to Managing SOA Projects with Agile Processes, which sets out an effective agile process for the development of SOA projects.
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Customer Reviews
Don't expect a lot of technical widgetry in there (you will be better served by other books, like "Understanding SOA with Web Services" for example).
But the various aspects that are touched upon, like:
* the business and technology drivers for SOA
* the approaches to requirements engineering that do not only talk about system specification, but about the larger whole
* the integration of Catalysis (which I happen to like much, even if it is a bit hard to find lots of people to discuss it with) conversation analysis
* the discussion about uses cases, that they are system specification tools (which I do agree with)
* the discussion about ontology and business rules (well complemented by another book and a free whitepaper on trireme's web site)
do create a rather complete way of looking at SOA based systems that have to run business processes.
At the end, requirements engineering and specification patterns pack wisdom and are directly applicable.
The book is a going to be a classic for me. The SOA monicker may be there just for the "fashionable" aspect. Most of the architectures and concepts that do work just get renamed. From hub and spoke to SOA, nothing really new. But so few projects do succeed applying these that this book is a welcome addition for any person wanting to embark on such projects.
I would also recommend the books of Paul C. Brown about "SOA" / Total Architecture as a complement.
*Succeeding with SOA: Realizing Business Value Through Total Architecture
*SOA in Practice: Implementing Total Architecture
Ian, thanks for writing this book. You made my day (well, week due to the amount of gems you have in there!!!).
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