@startuml
database Client
database Server
database X12
Client -> Server : PAS Request
Server -> X12 : X12N 278 Request
X12 -> Server : X12N 278 Response
Server -> Client : PAS Complete Response
Server -[#0000FF]-> Client : PAS Pended Response
Client -[#0000FF]-> Server : PAS Inquiry Request
Server -[#0000FF]-> X12 : X12N 278i Request
X12 -[#0000FF]-> Server : X12N 278i Response
Server -[#0000FF]-> Client : PAS Inquiry Response
@enduml