SOA Patterns > Inventory Governance Patterns > Canonical Expression
Canonical Expression (Erl)
How can service contracts be consistently understood and interpreted?
Problem
Service contracts may express similar capabilities in different ways, leading to inconsistency and risking misinterpretation.
Solution
Service contracts are standardized using naming conventions.
Application
Naming conventions are applied to service contracts as part of formal analysis and design processes.
Impacts
The use of global naming conventions introduces enterprisewide standards that need to be consistently used and enforced.
Principles
Architecture
Enterprise, Inventory, Service
The expression of service contracts is aligned across services.
Related Patterns in This Catalog
Agnostic Capability, Agnostic Context, Canonical Versioning, Concurrent Contracts, Contract Centralization, Contract Denormalization, Entity Abstraction, Metadata Centralization, Non-Agnostic Context, Process Abstraction, Service Layers, Utility Abstraction
Related Service-Oriented Computing Goals
This page contains excerpts from:
SOA Design Patterns by Thomas Erl
(ISBN: 0136135161, Hardcover, Full-Color, 400+ Illustrations, 865 pages)
For more information about this book, visit www.arcitura.com/books.
This page contains excerpts from:
Web Service Contract Design and Versioning for SOA
by Thomas Erl, Anish Karmarkar, Priscilla Walmsley, Hugo Haas, Umit Yalcinalp, Canyang Kevin Liu, David Orchard, Andre Tost, James Pasley
For more information about this book, visit www.arcitura.com/books.