SOAPatterns.org

Overview
- Introduction
- History
- Acknowledgements
- Podcasts
- Candidate Patterns
- Forms
- Press Releases
- Resources
Compound Patterns
Design Patterns (alphabetical)
Design Patterns (by category)
- Foundational Inventory Patterns
- Logical Inventory Layer Patterns
- Inventory Centralization Patterns
- Inventory Implementation Patterns
- Inventory Governance Patterns
- Foundational Service Patterns
- Service Implementation Patterns
- Service Security Patterns
- Service Contract Design Patterns
- Legacy Encapsulation Patterns
- Service Governance Patterns
- Capability Composition Patterns
  - Capability Composition
  - Capability Recomposition
- Service Messaging Patterns
- Composition Implementation Patterns
- Service Interaction Security Patterns
- Transformation Patterns
- REST-inspired Patterns
Cloud Computing Patterns
Service Technology Specs
SOA School
- Home
- Matrix
- Certifications
- Courses
- Exams
- Self-Study Kits
- Workshops
- Licensing
- Online Store

Home > Design Patterns > Logic Centralization

Logic Centralization (Erl)

How can the misuse of redundant service logic be avoided?

Problem

If agnostic services are not consistently reused, redundant functionality can be delivered in other services, resulting in problems associated with inventory denormalization and service ownership and governance.

Solution

Access to reusable functionality is limited to official agnostic services.

Application

Agnostic services need to be properly designed and governed, and their use must be enforced via enterprise standards.

Impacts

Organizational issues reminiscent of past reuse projects can raise obstacles to applying this pattern.

Principles

Service Reusability, Service Composability

Architecture

Inventory, Composition, Service

Service consumers are required to reuse functionality provided by a single designated agnostic service.

Related Patterns in This Catalog

Agnostic Capability, Agnostic Context, Agnostic Sub-Controller, Capability Composition, Contract Centralization, Domain Inventory, Dual Protocols, Enterprise Inventory, Entity Abstraction, Inventory Endpoint, Metadata Centralization, Redundant Implementation, Rules Centralization, Service Decomposition, Service Normalization, Stateful Services, Utility Abstraction

Related Service-Oriented Computing Goals

Increased Federation, Increased ROI, Reduced IT Burden

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.servicetechbooks.com.