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Service Composition Functional Profile

Service orchestration and choreography allows both application developers and non-developers to discover service "building blocks" that can be composed dynamically to provide business capabilities. Special cases include the orchestration of multiple services for a distributed query, or for a transactional workflow. Service orchestration and choreography will leverage static and behavioral semantics from the Semantic Infrastructure 2.0.

The Semantic Infrastructure provides the behavioral semantics required for dynamic composibility of services or generation of distributed queries. This includes runtimenegotiation to determine composibility of services based on service capabilities and constraints.

Capability Elaborations

This Functional Profile includes, but is not limited to, the following capability elaborations:

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• Semantic Infrastructure Requirements::caGRID 2.0 Platform and Terminology Integration::Service Orchestration and Choreography Service orchestration and choreography allows both application developers and non-developers to discover service "building blocks" that can be composed dynamically to provide business capabilities. Special cases include the orchestration of multiple services for a distributed query, or for a transactional workflow. Service orchestration and choreography will leverage static and behavioral semantics from the Semantic Infrastructure 2.0. The Semantic Infrastructure provides the behavioral semantics required for dynamic composibility of services or generation of distributed queries. This includes runtime contract discovery and negotiation to determine composibility of services based on service capabilities and constraints. Another use case is dynamic retrieval and enforcement of the policies that are in effect for a service interaction in the areas of logging, validations, data transformation, or routing. This information can be used either during the design of the orchestration or during the execution of the defined flow. Link to use case satisfied from caGRID 2.0 Roadmap: Federated query over the TCGA data and other data sets is performed using a service orchestration.

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serviceInteractionModel capability elaboration

Service Composition Model create, destroy, edit, maintain.

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