Coreografía de Servicios

"...does not rely on a central coordinator. Rather, each Web service involved in the choreography knows exactly when to execute its operations and with whom to interact. Choreography is a collaborative effort focusing on the exchange of messages in public business processes. All participants in the choreography need to be aware of the business process, operations to execute, messages to exchange, and the timing of message exchanges". Ver la siguiente figura (fuente: Oracle).

(fuente: http://www.oracle.com/technology/pub/articles/matjaz_bpel1.html)

"A technique used to characterize and to compose service-oriented business collaborations based on ordered message exchanges between peer entities in order to achieve a common business goal...Choreography differs from orchestration primarily in that each party in a business collaboration describes its part in the service interaction in terms of public message exchanges that occur between the multiple parties as standard atomic or composite services, rather than as specific service-oriented business processes that a single conductor/coordinator (e.g., orchestration engine) executes"

"...This typically involves use of a standards-based choreography scripting language. An example of such a language is the Web Services Choreography Description Language [WS-CDL]..."

(fuente: OASIS

http://docs.oasis-open.org/soa-rm/soa-ra/v1.0/soa-ra-pr-01.pdf)