Overview of Conversation and Choreographies

Choreography ⌘

Definition of the expected behavior
B procedural contract between interacting Participants
A self-contained Choreography have no Pools or Orchestration
Choreography exists between Pools (or Participants)
The Choreography Activities are interactions that represent a set (1 or more) of Message exchanges, which involves two or more Participants
There is no central controller, responsible entity or observer of the Process

The Conversation diagram is a particular usage of and an informal description of a Collaboration diagram
Pools of a Conversation usually do not contain a Process and a Choreography is usually not placed in between the Pools of a Conversation diagram
A Conversation is the logical relation of Message exchanges
Message exchanges are related to each other and reflect distinct business scenarios
Conversation Diagram Provides a “bird’s eye” perspective of the different Conversations that relate to the domain