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From Orchestration to Choreography through Contract Automata

We study the relations between a contract automata and an interaction model. In the former model, distributed services are abstracted away as automata - oblivious of their partners - that coordinate with each other through an orchestrator. The interaction model relies on channel-based asynchronous communication and choreography to coordinate distributed services. We define a notion of strong agreement on the contract model, exhibit a natural mapping from the contract model to the interaction model, and give conditions to ensure that strong agreement corresponds to well-formed choreography.

preprint2014arXivOpen access
Davide BasilePierpaolo DeganoGian-Luigi FerrariEmilio Tuosto
Logic in Computer ScienceFormal Languages and Automata Theory
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Davide BasilePierpaolo DeganoGian-Luigi FerrariEmilio Tuosto

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