Public and Private Flows
The introduction to this chapter mentioned the important fact that flow languages are used both to provide users of the service with a description of its behavior, and to actually implement the service. When used to describe service behavior, the information provided is strictly limited to what partners need to know to successfully interact with the service; implementations, on the other hand, must contain all the details that would enable a compatible interpreter to execute the service on behalf of requesters.
This section briefly reviews these two requirements and shows how a service's public and private behavior are related in a typical case.
Defining Service Behavior
The behavioral description of a service is the ...
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