We find that understanding new methodologies can help us learn new techniques for dealing with specific issues adapt a subprocess or get ideas for a new tool .

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In other words each of the high level tasks is mapped to something like a subprocess .

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To use Wilby 's process Destiny must first refine her new activity to make it a global subprocess which requires her to use the detailed palette instead of the simple ( default ) palette .

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That might be a Web service a System Component Architecture ( SCA ) service or as special case of the latter a subprocess that is exposed as an SCA service .

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To illustrate the ability to have repeatable events Figure 13 shows a situation in which work was completed on the original update and there has since been a further update made and that event has also been received by the event subprocess .

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Note that this variable is also stored in the subprocess_info structure as the complete field .

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With Python the subprocess module handles making the system call to the shell command and puts it into a list called in array in Bash or PHP .

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The message event has a solid line around it consistent with the view in the collapsed event subprocess you saw in Figure 30 .

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This exception is caught within the subprocess by the error start event handling the bad credit card exception .

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A subprocess can be embedded in the parent process or be a standalone process model that can be invoked by the parent process via a call activity .

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In many cases Python has removed much of the difficulty in using these various methods of concurrency by creating high-level modules such as asynchronous threading and subprocess .

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Besides using the monkeyrunner API itself you can use the standard Python os and subprocess modules to call Android tools such as Android Debug Bridge .

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This time no unexpected events have been received by this new instance and the token is shown on the event subprocess awaiting any valid event messages that we wish to generate for this order instance .

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Instead you can begin the initial iteration with just a subprocess within the larger scope .

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Each process or subprocess should only ever have one process controller .

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First note that a subprocess always starts with a start event .

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The output of each issue-resolution subprocess is a flag indicating what has been done to the transaction .

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You likely identified another subprocess .

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Once the process instance is complete the contained event subprocess stops listening for events .

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Double-clicking on the event subprocess expands it to show the detailed activities inside it as shown in Figure 3 .

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Figure 30 shows the revised Fulfill order process with an additional event subprocess Handle order cancellation added .

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Similar to a boundary event on an activity an event subprocess listens for its trigger signal only when the containing process is active .

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Figure 31 shows the expanded event subprocess with the Interrupt Parent Process ? setting checked .

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An error boundary event can be used to indicate a fault on a task or a subprocess .

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Notice that there is no longer a token against the Handle order updates event subprocess .

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Even though we have not performed an update on this order we find that two instances of the update event subprocess have been activated .

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This section introduces the example process for the scenario and shows how a message-based event subprocess is used to allow concurrent updates to be made to an existing process instance .

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