Minor Table 8-1 says consumer/provider for eiRequestEvent is either. Does this mean that either the VEN or VTN can initiate the request? This case is not covered in the sequence diagram provided in Figure 8-1. I think this is covered in Figure 1-2 w/o the either scenario.
Which event is being requested? Is it "assumed" to be current or next if there is no current? If this is how it is done, what happens if an event is cancelled? When the VEN requests another event message and a new event shows up it is assumed the event if over? I thought 9.3.1 Interaction Patterns for the EiStatus Service would clear this up, but there is event id there either.