Enterprise Integration Patterns

Enterprise Integration Patterns is a book by Gregor Hohpe and Bobby Woolf which describes 65 patterns for the use of enterprise application integration and message-oriented middleware in the form of a pattern language.

Key Information

Author	Gregor Hohpe and Bobby Woolf
Language	English
Series	Martin Fowler Signature Series
Subject	Enterprise integration pattern
Genre	Non-fiction, Software development
Published	10 October 2003
ISBN	978-0321200686
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The pattern language presented in the book consists of 65 patterns structured into 9 categories, which largely follow the flow of a message from one system to the next through channels, routing, and transformations. The book includes an icon-based pattern language, sometimes nicknamed "GregorGrams" after one of the authors. Excerpts from the book (short pattern descriptions) are available on the supporting website (see External links).

The book distinguishes four top-level alternatives for integration:

1. File Transfer
2. Shared Database
3. Remote Procedure Invocation
4. Messaging

The following integration types are introduced:

• Information Portal
• Data Replication
• Shared Business Function
• Service Oriented Architecture
• Distributed Business Process
• Business-to-Business Integration
• Tightly Coupled Interaction vs. Loosely Coupled Interaction

The pattern language continues to be relevant as of today, for instance in cloud application development and integration, and in the internet of things. In 2015, the two book authors reunited—for the first time since the publication of the book—for a retrospective and interview in IEEE Software.^[1]

Enterprise Integration Patterns are implemented in many open source integration solutions. Notable implementations include Spring Integration, Apache Camel, Red Hat Fuse, Mule ESB and Guaraná DSL.

• Enterprise messaging system
• Loose coupling
• Software design pattern

• Official website
• "Table Of Contents". Retrieved 4 June 2014.
• "The Add-in for Enterprise Architect extended the capability of this tool to create EIP models". Archived from the original on 27 November 2021. Retrieved 8 April 2016.

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