A Logic for Choreographies
  We explore logical reasoning for the global calculus, a coordination model based on the notion of choreography, with the aim to provide a methodology for specification and verification of structured communications. Starting with an extension of Hennessy-Milner logic, we present the global logic (GL), a modal logic describing possible interactions among participants in a choreography. We illustrate its use by giving examples of properties on service specifications. Finally, we show that, despite GL is undecidable, there is a significant decidable fragment which we provide with a sound and complete proof system for checking validity of formulae. 
Marco Carbone (IT University of Copenhagen), Davide Grohmann (IT   University of Copenhagen), Thomas T. Hildebrandt (IT Univ...
cs.PL cs.DC cs.LO