Combining Multiple Columns as Case ID
In a previous article, we discussed how you can take different perspectives on your data by choosing what you want to see as your activity name, case ID, and timestamps.
One of the examples was about changing the perspective of what we see as a case. The case determines the scope of the process: Where does the process start and where does it end?
You can think of a case as the streaming object that is moving through the process. For example, the travel ticket in the picture above might go through the steps ‘Purchased’, ‘Printed’, ‘Scanned’ and ‘Validated’. If you want to look at the process flow of travel tickets, you would choose the travel ticket number as your case ID.
In the previous article we saw how you can change the focus from one case ID to another. For example, in a call center process you can look at the process from the perspective of a service request or from the perspective of a customer. Both are valid views and offer different perspectives on the same process.
Another option you should keep in mind is that, sometimes, you might also want to combine multiple columns into the case ID for your process mining analysis.
For example, if you look at the callcenter data snippet below then you can see that the same customer contacts the helpdesk about different products. So, while we want to analyze the process from a customer perspective, perhaps
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