However, you usually don’t get your data already in an event log format. So you usually get data in a tabular form like this. You have several columns. And in this example, the first column is, for instance, the card ID. The second column, the action, what happened. The third column, the time stamp. The fourth column, the location. And the fifth column, the card balance after activity. But here, we can recognize the key concepts that we discussed earlier.For instance, the first column is actually the trace ID, for which card did the particular action happen. The second column is the event or the activity that happened, check-in, check-out, buying a card. The third column is the time stamp, when did this happen. The other columns can be considered extra attributes. And you can use these in your analysis later on if you want, but you can also leave them out. So it’s important that you recognize the first three columns, the trace identifier, the activity that happened, and when did it happen. These three columns are the minimal requirement for an event log. All the rest, you can use, but it’s not required. It’s not necessary.