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Multiparty Languages: The Choreographic and Multitier Cases (Pearl)

Authors Saverio Giallorenzo , Fabrizio Montesi , Marco Peressotti , David Richter , Guido Salvaneschi , Pascal Weisenburger

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Author Details

Saverio Giallorenzo
  • Università di Bologna, Italy
  • INRIA, Sophia Antipolis, France
Fabrizio Montesi
  • University of Southern Denmark, Odense, Denmark
Marco Peressotti
  • University of Southern Denmark, Odense, Denmark
David Richter
  • Technical University of Darmstadt, Germany
Guido Salvaneschi
  • University of St. Gallen, Switzerland
Pascal Weisenburger
  • University of St. Gallen, Switzerland


We thank the anonymous reviewers for their useful feedback and comments.

Cite AsGet BibTex

Saverio Giallorenzo, Fabrizio Montesi, Marco Peressotti, David Richter, Guido Salvaneschi, and Pascal Weisenburger. Multiparty Languages: The Choreographic and Multitier Cases (Pearl). In 35th European Conference on Object-Oriented Programming (ECOOP 2021). Leibniz International Proceedings in Informatics (LIPIcs), Volume 194, pp. 22:1-22:27, Schloss Dagstuhl - Leibniz-Zentrum für Informatik (2021)


Choreographic languages aim to express multiparty communication protocols, by providing primitives that make interaction manifest. Multitier languages enable programming computation that spans across several tiers of a distributed system, by supporting primitives that allow computation to change the location of execution. Rooted into different theoretical underpinnings - respectively process calculi and lambda calculus - the two paradigms have been investigated independently by different research communities with little or no contact. As a result, the link between the two paradigms has remained hidden for long. In this paper, we show that choreographic languages and multitier languages are surprisingly similar. We substantiate our claim by isolating the core abstractions that differentiate the two approaches and by providing algorithms that translate one into the other in a straightforward way. We believe that this work paves the way for joint research and cross-fertilisation among the two communities.

Subject Classification

ACM Subject Classification
  • Software and its engineering → Multiparadigm languages
  • Software and its engineering → Concurrent programming languages
  • Software and its engineering → Distributed programming languages
  • Distributed Programming
  • Choreographies
  • Multitier Languages


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