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Agnostic Context (Erl)


Home > Foundational Service Patterns > Agnostic Context

How can multi-purpose service logic be positioned as an effective enterprise resource?  

Problem

Multi-purpose logic grouped together with single purpose logic results in programs
with little or no reuse potential that introduce waste and redundancy into
an enterprise.

Solution

Isolate logic that is not specific to one purpose into separate services with distinct agnostic contexts.

Application

Agnostic service contexts are
defined by carrying out service
oriented analysis and service
modeling processes.

Impacts

This pattern positions reusable solution logic at an enterprise level, potentially bringing with it increased design complexity and enterprise governance issues.

Principles

Service Reusability

Architecture

Service
 
The application of this pattern results in a subset of the solution logic being further decomposed and then distributed into services with specific agnostic contexts.
Audio Podcast
This pattern is discussed as part of the audio podcast:

Foundational SOA Design Patterns and the Separation of Concerns
 

Related Patterns in This Catalog

Agnostic Capability (Erl), Agnostic Sub-Controller (Erl), Canonical Expression (Erl), Capability Recomposition (Erl), Composition Autonomy (Erl), Cross-Domain Utility Layer (Erl), Entity Abstraction (Erl), Logic Centralization (Erl), Service Encapsulation (Erl), Utility Abstraction (Erl)


Related Service-Oriented Computing Goals

Increased Business and Technology Alignment, Increased ROI, Increased Organizational Agility, Reduced IT Burden

SOA Design Patterns This page contains excerpts from:

SOA Design Patterns by Thomas Erl

Foreword by Grady Booch

With contributions from David Chappell, Jason Hogg, Anish Karmarkar, Mark Little, David Orchard, Satadru Roy,
Thomas Rischbeck, Arnaud Simon, Clemens Utschig, Dennis Wisnosky, and others.

(ISBN: 0136135161, Hardcover, Full-Color, 400+ Illustrations, 865 pages)

For more information about this book, visit
www.soabooks.com.
The Prentice Hall Service-Oriented Computing Series from Thomas Erl
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