Conventional wisdom of the "software stack" approach to building applications may no longer be relevant. Enterprises are pursuing new ways of organizing systems and processes to become service oriented and event-driven. Leveraging existing infrastructural investments is a critical aspect to the success of companies both large and small. Enterprises have to adapt their systems to support frequent technological changes, mergers and acquisitions. Furthermore, in a growing global market, these systems are being called upon to be used by external business partners. Technology is often difficult, costly and complex and without modern approaches can prevent the enterprise from becoming agile.

Enterprise Service Oriented Architectures helps readers solve this challenge in making different applications communicate in a loosely coupled manner. This classic handbook leverages the experiences of thought leaders functioning in multiple industry verticals and provides a wealth of knowledge for creating the agile enterprise.

In this book, you will learn:

• How to balance the delivery of immediate business value while creating long-term strategic capability

• Fundamental principles of a service-oriented architecture (find, bind and execute)

• The four aspects of SOA (Production, Consumption, Management and Provisioning)

• How to recognize critical success factors to implementing enterprise SOAs

• Architectural importance of service registries, interfaces and contracts

• Why improper service decomposition can hurt you later rather than sooner

• How application design and integration practices change as architects seek to implement the "agile" enterprise

About the Authors

James McGovern is an enterprise architect for The Hartford. He is an industry thought leader and co-author of the bestselling book: A Practical Guide to Enterprise Architecture.

Oliver Sims is a recognized leader in the architecture, design and implementation of service-oriented and component-based enterprise systems. He was a founding member of the OMG Architecture Board. He was co-author of the groundbreaking book: Business Component Factory.

Ashish Jain is a Principal Architect with Ping Identity Corporation, a leading provider of solutions for identity federation. Prior to joining Ping Identity, he worked with BEA Systems where his role was to assist BEA customers in designing and implementing their e-business strategies using solutions based on J2EE. He holds several industry certifications from SUN and BEA and is also a board member for the Denver BEA User group.

Mark Little is Director of Standards and SOA Manager for JBoss Inc. Prior to this, he was Chief Architect for Arjuna Technologies Ltd and a Distinguished Engineer at Hewlett-Packard. As well as being an active member of the OMG, JCP, OASIS and W3C, he is an author on many SOA and Web Services standards. He also led the development of the world's first standards-compliant Web Services Transaction product.

构建应用程序的 "软件堆栈 "方法的传统智慧可能不再适用了。企业正在追求组织系统和流程的新方法，以成为面向服务和事件驱动的。充分利用现有的基础设施投资是大小公司成功的一个关键方面。企业必须调整他们的系统以支持频繁的技术变化、兼并和收购。此外，在一个不断增长的全球市场中，这些系统正被外部商业伙伴要求使用。技术往往是困难的、昂贵的和复杂的，如果没有现代化的方法，会阻碍企业变得灵活。

企业服务导向架构》帮助读者解决这一难题，使不同的应用程序以松散耦合的方式进行通信。这本经典的手册利用了在多个行业垂直领域运作的思想领袖的经验，为创建敏捷的企业提供了丰富的知识。

在这本书中，你将学到。

- 如何在创造长期战略能力的同时平衡即时商业价值的交付

- 面向服务的架构的基本原则（寻找、绑定和执行）

- SOA的四个方面（生产、消费、管理和供应）。

- 如何认识实施企业SOA的关键成功因素

- 服务注册表、接口和合同的架构重要性

- 为什么不恰当的服务分解会对你造成伤害，而不是早晚的问题

- 当架构师寻求实施 "敏捷 "企业时，应用设计和集成实践是如何变化的

关于作者

James McGovern是The Hartford的企业架构师。他是行业的思想领袖，也是畅销书的共同作者。企业架构实用指南》一书的作者之一。

Oliver Sims是面向服务和基于组件的企业系统的架构、设计和实施方面公认的领导者。他是OMG架构委员会的创始成员之一。他是开创性书籍的共同作者。业务组件工厂》一书的共同作者。

Ashish Jain是Ping Identity公司的首席架构师，该公司是身份联盟解决方案的领先供应商。在加入Ping Identity之前，他在BEA系统公司工作，他的职责是协助BEA的客户使用基于J2EE的解决方案设计和实施他们的电子商务战略。他拥有SUN和BEA的多个行业认证，同时也是丹佛BEA用户组的董事会成员。

Mark Little是JBoss公司的标准总监和SOA经理。在此之前，他是Arjuna技术有限公司的首席架构师和惠普公司的杰出工程师。除了是OMG、JCP、OASIS和W3C的活跃成员外，他还是许多SOA和Web服务标准的作者。他还领导开发了世界上第一个符合标准的网络服务交易产品。