Foundations of Coordination and Contracts and Their Contribution to Session Type Theory
Abstract
We briefly recall results obtained in twenty years of research, spanning across the old and the new millennium, on the expressiveness of coordination languages and on behavioural contracts for Service-Oriented Computing. Then, we show how the techniques developed in those contexts are currently contributing to the clarification of aspects that were unclear about session types, in particular, asynchronous session subtyping that was considered decidable since 2009, while it was proved to be undecidable in 2017.
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