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Changes Calculation

The changes calculation is used to compare two items of the same type and output the list of differences. In general it is a simple comparer that compares each parameter value between the two items. However, for numerical values, due to the imprecision of floating point calculations, the precision of each parameter can be defined individually. Furthermore the tolerance can be adjusted to control how large a change has to be to get counted. Both of these parameters are controlled in the definitions view.

The changes calculation is used in:

  • the CID to highlight the differences between the items
  • the runsheet to list the setup changes compared to the previous run
  • the math expression CalculateChanges

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