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• Each branch of a Fork Instruction allows pairs of names and values for variables that are passed to the parent order to be specified:
  • For the parent order a variable with the given name and value is created.
  • Variable names have to be unique across branches, i.e. no two branches can return the same variable names.
  • Users are free to choose variable names for the parent order and assign variable values of the child order or constant values.
• The Join Instruction adds adds any variables declared with created within branches to the parent order.

Error Handling

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Job Errors

Parent orders are not exposed to job errors as any instructions and jobs within the Fork Instruction are executed by child orders. Instead a parent order adopts the final state of its child orders.

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