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Data Summarization

This section of the documentation explains how Power BI summarizes data for the Process Chart.

When considering summarization, data fields can be divided into grouping and measures. Grouping represents the hierarchy of the data, while measures are values assigned to specific levels within that hierarchy.

Data Fields​

Data FieldSummarization
Process IdGrouping
Process LabelMeasure
Additional Process LabelsMeasure
Event IdGrouping
Next Event IdGrouping
Event LabelMeasure
Additional Event LabelsMeasure
Event GroupMeasure
Edge LabelsMeasure

Grouping Hierarchy​

The hierarchy of the three grouping data fields is as follows:

  • Process Id
    • Event Id
      • Next Event Id

Conclusion:

  • Process Id: This is the top-level grouping, representing the unique id for a process.
  • Event Id: This is the second level, identifying specific events within a process.
  • Next Event Id: This is the third level, representing the egdes to other events within a process.

Data Example​

Summarization works exactly the same way as in the Power BI Matrix Table, making it a good way to present a simple example.

Hierarchy level 1​

Let's start by adding only the Process Id. This level identifies each process.

Matrix process level

Measures mapped to this level:

  • Process Label
  • Additional Process Labels

Hierarchy level 2​

Next, let's expand the Matrix to the Event Id. This level identifies each event within the process.

Matrix event level

Measures mapped to this level:

  • Event Label
  • Additional Event Labels
  • Event Group

Hierarchy level 3​

And finally, the last level: Next Event Id. This level identifies each edge from the event.

Matrix next event level

Measures mapped to this level:

  • Edge Labels


Same data can be seen in Process Chart like this:

Data in Process Chart

Conclusion​

When planning data modeling for From Visuals Process Chart, it can be thought of similarly to Rows and Values in a Power BI Matrix Table.