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Multiparty session types (MPST) are a specification and verification framework for distributed message-passing systems. The communication protocol of the system is specified as a global type, from which a collection of local types (local…

Programming Languages · Computer Science 2026-05-06 Lorenzo Gheri , Nobuko Yoshida

Multiparty session typing (MPST) is a method to make concurrent programming simpler. The idea is to use type checking to automatically detect safety and liveness violations of implementations relative to specifications. In practice, the…

Programming Languages · Computer Science 2025-01-30 Sung-Shik Jongmans

Multiparty session types (MPST) are a type-based approach for specifying message-passing distributed systems. They rely on the notion of global type specifying the global behaviour and local types, which are the projections of the global…

Formal Languages and Automata Theory · Computer Science 2025-08-12 Cinzia Di Giusto , Etienne Lozes , Pascal Urso

Ensuring correctness of communication in distributed systems remains challenging. To address this, Multiparty session types (MPST), initially introduced by Honda et al. [52, 53], offer a type discipline in which a programmer or architect…

Programming Languages · Computer Science 2026-05-25 Ping Hou , Nobuko Yoshida , Iona Kuhn

Multiparty Session Types (MPST) are a well-established typing discipline for message-passing processes interacting on sessions involving two or more participants. Session typing can ensure desirable properties: absence of communication…

Programming Languages · Computer Science 2017-04-12 Alceste Scalas , Nobuko Yoshida

Multiparty session types (MST) are a well-established type theory that describes the interactive structure of a fixed number of components from a global point of view and type-checks the components through projection of the global type onto…

Programming Languages · Computer Science 2019-02-05 Andi Bejleri , Elton Domnori , Malte Viering , Patrick Eugster , Mira Mezini

Multiparty session types (MSTs) are a type-based approach to verifying communication protocols, represented as global types in the framework. We present a precise subtyping relation for asynchronous MSTs with communicating state machines…

Formal Languages and Automata Theory · Computer Science 2024-01-30 Elaine Li , Felix Stutz , Thomas Wies

Multiparty Session Types (MPSTs) offer a structured way of specifying communication protocols and guarantee relevant communication properties, such as deadlock-freedom. In this paper, we extend a minimal MPST system with quantum data and…

Programming Languages · Computer Science 2024-09-18 Ivan Lanese , Ugo Dal Lago , Vikraman Choudhury

Modern web applications combine persistent state updates, concurrent interactions, and unreliable communication with external services. Failures such as timeouts can occur after partial state changes, producing temporary inconsistencies…

Programming Languages · Computer Science 2026-04-09 Richard Casetta , Nils Gesbert , Pierre Genevès

Session types enable the specification and verification of communicating systems. However, their theory often assumes that processes never fail. To address this limitation, we present a generalised multiparty session type (MPST) theory with…

Programming Languages · Computer Science 2023-02-22 Adam D. Barwell , Alceste Scalas , Nobuko Yoshida , Fangyi Zhou

With distributed computing becoming ubiquitous in the modern era, safe distributed programming is an open challenge. To address this, multiparty session types (MPST) provide a typing discipline for message-passing concurrency, guaranteeing…

Programming Languages · Computer Science 2020-09-15 Fangyi Zhou , Francisco Ferreira , Raymond Hu , Rumyana Neykova , Nobuko Yoshida

Multiparty session types (MSTs) are a type-based approach to verifying communication protocols. Central to MSTs is a projection operator: a partial function that maps protocols represented as global types to correct-by-construction…

Formal Languages and Automata Theory · Computer Science 2024-03-28 Elaine Li , Felix Stutz , Thomas Wies , Damien Zufferey

Multiparty Session Types (MPST) provide a type-theoretic foundation for specifying and verifying communication protocols in distributed systems. MPST rely on the notion of global type which specifies the global behaviour and local types,…

Formal Languages and Automata Theory · Computer Science 2025-12-08 Cinzia Di Giusto , Etienne Lozes , Pascal Urso

Multiparty session types (MSTs) provide an efficient methodology for specifying and verifying message passing software systems. In the theory of MSTs, a global type specifies the interaction among the roles at the global level. A local…

Formal Languages and Automata Theory · Computer Science 2022-08-12 Rupak Majumdar , Madhavan Mukund , Felix Stutz , Damien Zufferey

Multiparty session types (MPST) offer a framework for the description of communication-based protocols involving multiple participants. In the top-down approach to MPST, the communication pattern of the session is described using a global…

Logic in Computer Science · Computer Science 2026-05-25 Omer Keskin , Nobuko Yoshida , Rob van Glabbeek

Multiparty session types are designed to abstractly capture the structure of communication protocols and verify behavioural properties. One important such property is progress, i.e., the absence of deadlock. Distributed algorithms often…

Logic in Computer Science · Computer Science 2024-02-14 Kirstin Peters , Uwe Nestmann , Christoph Wagner

MultiParty Session Types (MPST) provide a useful framework for safe concurrent systems. Mixed choice (enabling a participant to play at the same time the roles of sender and receiver) increases the expressive power of MPST as well as the…

Logic in Computer Science · Computer Science 2025-08-20 Franco Barbanera , Mariangiola Dezani-Ciancaglini

This paper addresses a problem found within the construction of Service Oriented Architecture: the adaptation of service protocols with respect to functional redundancy and heterogeneity of global communication patterns. We utilise the…

Programming Languages · Computer Science 2019-04-03 Assel Altayeva , Nobuko Yoshida

Multiparty session types (MPST) provide a rigorous foundation for verifying the safety and liveness of concurrent systems. However, existing approaches often force a difficult trade-off: classical, projection-based techniques are…

Programming Languages · Computer Science 2025-12-01 David Castro-Perez , Francisco Ferreira , Sung-Shik Jongmans

Protocols provide the unifying glue in concurrent and distributed software today; verifying that message-passing programs conform to such governing protocols is important but difficult. Static approaches based on multiparty session types…

Programming Languages · Computer Science 2022-05-24 Bas van den Heuvel , Jorge A. Pérez
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