Imagine a station in a car manufacturing plant.

  • On the left side of the car,
  • a few joints need to be performed with the Joining Tool.
  • the outcome should be validated with a wrench.
  • On the right side,
  • another batch of joints need be performed.
  • the outcome should be validated by a wrench.
  • the outcome should be validated by a vision system.
  • The left and right side of the car should be handled by two different operators independently in parallel.
  • The operators can occasionally enter radio shadow but should still be able to carry out their tasks.
  • The MES want to control the station as one unit and get the total result when all is done. 

Figure 23 describes an example “Combined Process” (Job 1) with the following sub-processes.

  • A “batch” joining process for joining two fasteners. (Batch 1)
  • A “quality” process to validate the outcome. (Quality Process 1)
  • A nested “joining process” (Job 2) with
  • a “batch” of three joining operations. (Batch 2)
  • a “quality” process. (Quality Process 2)
  • a “vision” process. (Vision Process)
  • “Combined Process” (Job 1) is done when all the sub-processes (Batch 1, Quality Process 1, Job 2) are done.
  • “Combined Process” (Job 2) is done when all the sub-processes (Batch 2, Quality Process 2, Vision Process) are done.

Figure 23 describes the outcome from the “Combined Process” (Job 1) execution. The outcome is sent as a total result (Job Result) to the MES system.

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Figure 23 – Joining Process and Result Model Mapping Example