Calling rules in an orchestration

A rule set (policy) can be called inside an orchestration by using the Call Rules shape. Within an orchestration, you can use the Call Rules shape to invoke a policy. The policy on its turn, invokes the rule engine which operates on the rules in the policy. The rules engine can also be programmatically called from the expression code, for example, in an Expression or Message Assignment shape. The following diagram illustrates an orchestration calling the rule engine:

Calling rules in an orchestration

The difference between calling rules from the Call Rules shape and calling rules from the Expression shape is that with the Call Rules shape the latest ...

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