On global types and multi-party sessions

• Main Authors: Castagna, Giuseppe, Dezani-Ciancaglini, Mariangiola, Padovani, Luca
• Other Authors: Preuves, Programmes et Systèmes (PPS), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Informatica Torino, Università degli studi di Torino = University of Turin (UNITO), Roberto Bruni, Juergen Dingel, TC 6, WG 6.1
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2011
• Subjects: [INFO.INFO-PL]Computer Science [cs]/Programming Languages [cs.PL]; Iceland
• Online Access: https://hal.science/hal-00618814; https://hal.science/hal-00618814/document; https://hal.science/hal-00618814/file/978-3-642-21461-5_1_Chapter.pdf; https://doi.org/10.1007/978-3-642-21461-5_1

International audience We present a new, streamlined language of global types equipped with a trace-based semantics and whose features and restrictions are semantically justified. The multi-party sessions obtained projecting our global types enjoy a liveness property in addition to the traditional progress and are shown to be sound and complete with respect to the set of traces of the originating global type. Our notion of completeness is less demanding than the classical ones, allowing a multi-party session to leave out redundant traces from an underspecified global type.