South East Training - Business Process Modelling Toolkit

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Hierarchical Expansion of Sub-Processes

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Hierarchical Expansion

  • An alternative to in-line expansion is to use hierarchical expansion, with the expanded sub-process appearing on a different page (below they appear on the same page simply to save space).
  • The diagram containing the collapsed sub-process is referred to as the parent diagram and the expanded sub-process is referred to as the child diagram.
  • Note that the expanded sub-process omits the pool shape.  Further, the sub-process does not have the large rectangle surrounding it as we see for the in-line expansions.
  • Sub-processes can contain lanes. 


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