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Non-Agnostic Context (Erl)


Home > Foundational Service Patterns > Non-Agnostic Context
How can single-purpose service logic be positioned as an effective enterprise resource?  

Problem

Non-agnostic logic that is not service-oriented can inhibit the effectiveness of service compositions that utilize agnostic services.

Solution

Non-agnostic solution logic suitable for service encapsulation can be located within services that reside as official members of a service inventory.

Application

A single-purpose functional service context is defined.
Impacts

Although they are not expected to provide reuse potential, nonagnostic services are still subject to the rigor of serviceorientation.

Principles

Standardized Service Contract, Service Composability

Architecture

Service
                   
The non-agnostic service logic is encapsulated within a service based on a correspondingly non-agnostic service context (E).
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

Canonical Expression (Erl), Capability Composition (Erl), Capability Recomposition (Erl), Process Abstraction (Erl), Process Centralization (Erl), Service Encapsulation (Erl)


Related Patterns in Other Catalogs

Mediator (Gamma, Helm, Johnson, Vlissides)


Related Service-Oriented Computing Goals

Increased Business and Technology Alignment, Reduced IT Burden


Related Publications

SOA Pattern of the Week: Non-Agnostic Context (InformIT)


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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