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SOA Made Simple

You're reading from   SOA Made Simple

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Product type Paperback
Published in Dec 2012
Publisher Packt
ISBN-13 9781849684163
Length 292 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (17) Chapters Close

SOA Made Simple
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Understanding the Problem FREE CHAPTER 2. The Solution 3. Service Identification and Design 4. Classification of Services 5. The SOA Platform 6. Solution Architectures 7. Creating a Roadmap, How to Spend Your Money and When? 8. Life Cycle Management 9. Pick your Battles 10. Methodologies and SOA Index

Drivers for services


The international insurance company wanted to re-use OrderService. Reuse is not the goal here, but the means to an end: cost-reduction or faster time-to-market. The following are drivers for SOA and services:

  • Flexibility: Services are small building blocks with a limited and clear set of capabilities. That means it is easier to support the changing requirements of your organization. Your IT landscape is more modular, preventing domino effects for changes in software.

  • Standardization: Services are frequently provided using open standards thereby hiding the underlying technical complexity and details. This makes the consumers and the organization as whole more vendor-independent. A consumer can still use a service, even if it is provided by another system as long as it uses the same interface. Almost all large vendors support open standards such as REST, SOAP, WSDL, WS-*, XML, and so on.

  • Cost reduction: Reusing a service is cheaper than building, maintaining, and hosting...

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