There is a new book with the interesting title "Hagenberg Business Process Modelling Method". So, there is no universal methodology, but one that works in Hagenberg (just a joke) - nevertheless, there is also a "Grazer Ansatz" developed at the TU Graz (no joke).
There is a chapter inside with the title "An Enhanced Communication Concept"; as I do not have the book yet - let's do some googling: "An Enhanced Communication Concept for Business Processes" from the same author gives some insight.
"The event pools of S-BPM [Fl12] provided inspiration for the pool concept introduced here. The pools of S-BPM are tailored for actor comfort, but are not embedded in a wider delivery concept. S-BPM provides some extra “configuration parameters” for input pools, whose most important application appears to be the enforcement of synchronous communication, which is handled differently in our more general concept."