Introduction to
Service-Orientation
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Services (Part I)
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Services (Part II)
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The Service-Orientation
Design Paradigm
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Origins and Influences of Service-Orientation (Part I)
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Origins and Influences of Service-Orientation (Part II)
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Service-Orientation
Design Principles
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Standardized Service Contracts
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Service Loose Coupling
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Service Abstraction
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Service Reusability
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Service Autonomy
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Service Statelessness
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Service Discoverability
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Service Composability
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Service-Orientation and Interoperability
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Effects of Service-Orientation on the Enterprise
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Service-Orientation and the Concept of "Application"
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Service-Orientation and the Concept of "Integration"
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The Service Composition
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Service-Orientation
in the Real World
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Life Before
Service-Orientation (Part I)
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Life Before
Service-Orientation (Part II)
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The Need for
Service-Orientation (Part I)
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The Need for
Service-Orientation (Part II)
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Challenges Introduced by Service-Orientation (Part I)
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Challenges Introduced by Service-Orientation (Part II)
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Additional Considerations
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SOA Book Series
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SOA Training & Certification
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Free SOA Principles Poster (English & Spanish versions)
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Notification
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SOAPatterns.org
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WhatIsSOA.com
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SOA Visio Stencil
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Service Composability
"Services are effective composition participants,
regardless
of the size and complexity of the composition."
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Home > Service-Orientation Design Principles > Service Composability
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Audio Podcast
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The last four principles are discussed in the audio podcast Introduction to Service-Orientation Design Principles - Part 2
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As the sophistication of service-oriented solutions continues to grow, so does the complexity of underlying service composition configurations. The ability to effectively compose services is a critical requirement for achieving some of the most fundamental goals of service-oriented computing.
Complex service compositions place demands on service design that need to be anticipated to avoid massive retro-fitting efforts. Services are expected to be capable of participating as effective composition members, regardless of whether they need to be immediately enlisted in a composition. The principle of Service Composability addresses this requirement by ensuring that a variety of considerations are taken into account.
Figure: The Service Composability design principle helps determine how to carry out a separation of concerns in support of service-orientation. The services that result from the illustrated decomposition of solution logic are assembled to solve Problem A. However, the ultimate, strategic benefit comes with the ability to continually recompose these services to help solve additional problems in the future.
How the application of this design principle helps prepare services for the world of complex compositions is described in Chapter 13: Service Composability (Composition Member Design and Complex Compositions).
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Related Service-Orientation Computing Goals
Increased Intrinsic Interoperability, Increased Business and Technology Alignment, Increased ROI, Increased Organizational Agility, Reduced IT Burden
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Related SOA Patterns
Agnostic Capability, Agnostic Sub-Controller, Brokered Authentication, Capability Composition, Capability Recomposition, Composition Autonomy, Cross-Domain Utility Layer, Data Confidentiality, Data Model Transformation, Data Origin Authentication, Direct Authentication, Domain Inventory, Dual Protocols, Enterprise Inventory, Entity Abstraction, Intermediate Routing, Logic Centralization, Non-Agnostic Context, Process Abstraction, Process Centralization, Protocol Bridging, Reliable Messaging, Service Callback, Service Decomposition, Service Instance Routing, Service Layers, State Messaging, Utility Abstraction
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