Use cases for multiparty

["Yunker, John" <yunker@amazon.com>]

Title: Use cases for multiparty

Simple use cases that may allow us to focus on minimal multi party support:

1) Specify that an associated binary collaboration MUST be started with a designated third party, such as a carrier or bank.

        a) Identify the binary collaboration (BPSS reference?) to be started (required)
        b) Identify the guards associated with the transition (fork) to the associated binary collaboration (required)
        c) Identify the source for identification of the partner - dynamic role / party binding (optional?)
2) Specify that a binary process MUST synchronize with a signal from an associated binary collaboration
        a) Wait for the associated signal (join)
        b) Identify the associated business action in the associated binary collaboration
        c) Use information (result, content) from the signal in guards in the original binary collaboration