Software Architect's Handbook

Orchestration and choreography

Service orchestration and service choreography serve important roles in SOAs, as they are approaches to assembling multiple services so that they can work together.

Orchestration represents business process logic in a standardized way using services. It automates the execution of a workflow by coordinating and managing different services. In service orchestration, there is a centralized process containing fixed logic. An orchestrator controls the process by deciding which services to invoke and when to invoke them. Orchestration is analogous to the conductor of an orchestra, who unifies and directs individual performers to create an overall performance.

Interoperability for an organization is promoted in solutions ...