EAI — Lack of FCMTerminals for an EAIRequestReplyAdapter

Document: UML Profile and Interchange Models for EAI
Section: 6.3.11.4 (EAIRequestReplyAdapter)

Description:
In Section 6.3.11.3, an EAICallAdapter is defined to have FCMTerminals that represent the call from an external system into a message flow. However, Section 6.3.11.4 defines an EAIRequestReplyAdapter to have ONLY the "requestIn" and "replyOut" EAITerminals, without any other FCMTerminals to allow connection to the external system. This is not parallel with the definition of EAICallAdapter, and, indeed, it is inconsistent with the definitions of other adapters, which allow FCMTerminals for external connection (for example, the definition of an EAISourceAdapter places constraints on the output terminal of the adapter, which connects into the message flow, but specifically does not constrain the input terminal(s), to allow external connection).

Recommendation:
Define an EAICallAdapter to have two additional FCMTerminals, "callOut" and "handleReturn". Define the "requestIn" and "replyOut" terminals to represent the EAIParameters of the EAIOperation invoked by the EAIRequestReplyAdapter. Add two new assocations from EAIRequestReplyAdapter to FCMParameter (say "callParameter" and "returnParameter") and define the "callOut" and "handleReturn" terminals as representing these parameters (this provides the typing for the new terminals).

see above