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The public review of the manuscript for "SOA Design Patterns" has concluded !
Thank you to all that participated. 234 reviews were received and over 30 new patterns have been contributed,
increasing the size of this book by over 50%. The second draft of the manuscript is currently in development.

About the Public Review
    History
    Podcasts (audio)
    Notification
    Submit Feedback
    Contribute a Proven Pattern
    Contribute a Candidate Pattern
    Acknowledgements
    Press Release

Introduction to SOA Types & Design Patterns
    The Architecture of
Service-Orientation
    Understanding SOA
Design Patterns

SOA Design Patterns
    Basic Service Inventory Design Pattern Language
    Architectural Design Patterns
    Basic Service Design
Pattern Language
    Service Design Patterns
    Common Compound
Design Patterns

Additional Resources
    View Entire TOC
    Symbol Legend
    Master Pattern List
(by category)
    Candidate Design Patterns
    Design Patterns Publications
    Download SOA Principles Poster (PDF)

About the Book



SOA Design Patterns
by Thomas Erl

For more information visit: www.soapatterns.com

Related Publications


Read the article "Introducing SOA Design Patterns" from the
June 2008 SOA World Magazine (High-Res PDF).

PLEASE NOTE

The content on this page is from the first draft of the manuscript for the upcoming book "SOA Design Patterns" by Thomas Erl. This version of the manuscript was authored in September, 2007. Since then, the manuscript has undergone significant content and structural changes as a result of an industry-wide review in which hundreds of SOA practitioners participated in addition to SOA vendors and experts from the design patterns community.

You are welcome to use the information on this page for research purposes, but you should assume that most of it will change in the final release of the "SOA Design Patterns" book.

Note also, that as a result of an industry-wide call for participation from December 2007 to February 2008, over 30 new design patterns have been contributed to this book. As they become finalized and are incorporated by the author, concise descriptions will be published on this site, and full descriptions with examples will be made available in the final, printed book.

Due to the volume of new content and changes, the release of the "SOA Design Patterns" book has been postponed to October, 2008. To learn more about the book, visit www.soapatterns.com. To be notified of updates to this site, use the notification form.

Entity Data Abstraction (Candidate)

Home > Candidate Patterns > Entity Data Abstraction
Entity Data Abstraction

Entity Data Abstraction

How can a reusable business data architecture be established?

Problem

Creating data models (schemas) in support of entity services can result in a series of service-specific data models that introduce redundancy and are only useful to the services.

Solution

Establish an entity data architecture that exists independently from the federated service endpoint layer, so that it can be normalized and used by both services and other parts of the enterprise.

Application

Entity-centric schemas are defined and standardized separately in support of service layers but also in support of generic data representation.

Impacts

Not all schemas will be appropriate for all services, which may lead to performance trade-offs or the need to introduce redundant data models.

Principles

Standardized Service Contract, Service Abstraction

Architecture

Inventory

Status

Suspended

Contributor

Thomas Erl

 

Contributor Notes

Although this technique is common when designing data architectures as independent layers in support of entity service layers, this design pattern seems like more of a mildly specialized implementation of the Schema Centralization pattern. I’m not certain whether a separate pattern dedicated to entity schema abstraction is warranted.

- Thomas Erl

The Prentice Hall Service-Oriented Computing Series from Thomas Erl
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