Enterprise Integration Patterns

Enterprise Integration Patterns: Designing, Building, and Deploying Messaging Solutions
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

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

The Integration (Messaging) Pattern Language

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).

Integration Styles and Types

The book distinguishes four top-level alternatives for integration:

File Transfer
Shared Database
Remote Procedure Invocation
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

Messaging

Message Channel
Message
Pipes and Filters
Message Router
Message Translator
Message Endpoint

Message Construction

Command Message
Document Message
Event Message
Request-Reply
Return Address
Correlation Identifier
Message Sequence
Message Expiration
Format Indicator

Message Router

Content-Based Router
Message Filter
Dynamic Router
Recipient List
Splitter
Aggregator
Resequencer
Composed Message Processor
Scatter-Gather
Routing Slip
Process Manager
Message Broker

Message Transformation

Envelope Wrapper
Content Enricher
Content Filter
Claim Check
Normalizer
Canonical Data Model

Message Endpoint

Messaging Gateway
Messaging Mapper
Transactional Client
Polling Consumer
Event-Driven Consumer
Competing Consumers
Message Dispatcher
Selective Consumer
Durable Subscriber
Idempotent Receiver
Service Activator

System Management

Control Bus
Detour
Wire Tap
Message History
Message Store
Smart Proxy
Test Message
Channel Purger

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

Implementation

Enterprise Integration Patterns are implemented in many open source ESBs, including Talend, Spring Integration, WSO2 ESB, Apache Camel, Red Hat JBoss Fuse, Mule ESB or Guaraná DSL.

References

^ Zimmermann, Olaf; Pautasso, Cesare; Hohpe, Gregor; Woolf, Bobby (2016). "A Decade of Enterprise Integration Patterns: A Conversation with the Authors". IEEE Software. 33 (1): 13–19. doi:10.1109/MS.2016.11.

External links

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". Retrieved 8 April 2016.

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[ieeesweip-1] Zimmermann, Olaf; Pautasso, Cesare; Hohpe, Gregor; Woolf, Bobby (2016). "A Decade of Enterprise Integration Patterns: A Conversation with the Authors". IEEE Software. 33 (1): 13–19. doi:10.1109/MS.2016.11.

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