What is OCEL 2.0?

OCEL 2.0 (Object-Centric Event Log standard, version 2.0) is an open standard format for storing object-centric event data. It allows a single event to relate to multiple objects of different types and also captures object attributes and relationships over time.

Why does this matter?

Classic event logs force processes into a single case ID and thereby distort reality. OCEL 2.0 is the data foundation for Object-Centric Process Mining and enables more realistic, multidimensional analysis of complex ERP and CRM processes.

What does this look like in practice?

In OCEL 2.0 the event "shipment sent" references three orders and one delivery note at once. In a classic XES log the same event would have to appear three times, once per order case — with all the distortion that introduces into frequencies and cycle times.

Not to be confused with

Not to be confused with XES, the older standard with exactly one case ID per event. Nor with OCPM itself: OCEL 2.0 is the exchange format, OCPM the analysis method that works on it.